diff --git a/lib/resource-1.0/doc/MkSynopsis.hs b/lib/resource-1.0/doc/MkSynopsis.hs
index 84052a436..c1b0d80ce 100644
--- a/lib/resource-1.0/doc/MkSynopsis.hs
+++ b/lib/resource-1.0/doc/MkSynopsis.hs
@@ -30,7 +30,7 @@ main = do
   link "Source:" syntaxAPI
   space
   rs <- getRules syntaxAPI
-  delimit $ mkSplitTables True isLatex rs
+  delimit $ mkSplitTables True isLatex cs rs
   space
   title "Structural Words"
   space
@@ -114,9 +114,13 @@ inChunks i f = concat . intersperse ["\n\n"] . map f . chunks i where
 
 -- Makes one table per result category.
 -- Adds a subsection header for each table.
-mkSplitTables :: Bool -> Bool -> [(String,String,String)] -> [String]
-mkSplitTables hasEx isLatex rs = concatMap t (sortRules rs)
-  where t xs = subtitle (resultCat (head xs)) : mkTable hasEx isLatex xs
+mkSplitTables :: Bool -> Bool -> [(String,String,String)] -> [(String,String,String)] -> [String]
+mkSplitTables hasEx isLatex cs rs = concatMap t (sortRules rs)
+  where t xs = [subtitle c] ++ expl ++ mkTable hasEx isLatex xs
+         where c = resultCat (head xs)
+               expl = case [e | (n,e,_) <- cs, n == c] of
+                        []  -> []
+                        e:_ -> ["", e, ""]
 
 mkTable :: Bool -> Bool -> [(String,String,String)] -> [String]
 mkTable hasEx isLatex = inChunks chsize (\rs -> header : map (unwords . row) rs)
diff --git a/lib/resource-1.0/doc/synopsis.html b/lib/resource-1.0/doc/synopsis.html
index 7855582f3..115b9d8b5 100644
--- a/lib/resource-1.0/doc/synopsis.html
+++ b/lib/resource-1.0/doc/synopsis.html
@@ -423,6 +423,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 </P>
 <A NAME="AP"></A>
 <H2>AP</H2>
+<P>
+adjectival phrase
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -498,6 +501,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="AdN"></A>
 <H2>AdN</H2>
+<P>
+numeral-modifying adverb,
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -513,6 +519,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Adv"></A>
 <H2>Adv</H2>
+<P>
+verb-phrase-modifying adverb,
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -573,6 +582,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Ant"></A>
 <H2>Ant</H2>
+<P>
+anteriority
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -593,6 +605,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="CN"></A>
 <H2>CN</H2>
+<P>
+common noun (without determiner)
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -693,6 +708,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Cl"></A>
 <H2>Cl</H2>
+<P>
+declarative clause, with all tenses
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -828,6 +846,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Det"></A>
 <H2>Det</H2>
+<P>
+determiner phrase
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -908,6 +929,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="IAdv"></A>
 <H2>IAdv</H2>
+<P>
+interrogative adverb
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -923,6 +947,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="IP"></A>
 <H2>IP</H2>
+<P>
+interrogative pronoun
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -948,6 +975,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Imp"></A>
 <H2>Imp</H2>
+<P>
+imperative
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1078,6 +1108,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="NP"></A>
 <H2>NP</H2>
+<P>
+noun phrase (subject or object)
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1203,6 +1236,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Num"></A>
 <H2>Num</H2>
+<P>
+cardinal number (used with QuantPl)
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1303,6 +1339,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Ord"></A>
 <H2>Ord</H2>
+<P>
+ordinal number (used in Det)
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1328,6 +1367,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="PConj"></A>
 <H2>PConj</H2>
+<P>
+phrase-beginning conj.
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1343,6 +1385,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Phr"></A>
 <H2>Phr</H2>
+<P>
+phrase in a text
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1383,6 +1428,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Pol"></A>
 <H2>Pol</H2>
+<P>
+polarity
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1428,6 +1476,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="QCl"></A>
 <H2>QCl</H2>
+<P>
+question clause, with all tenses
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1478,6 +1529,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="QS"></A>
 <H2>QS</H2>
+<P>
+question
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1503,6 +1557,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Quant"></A>
 <H2>Quant</H2>
+<P>
+quantifier with both sg and pl
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1598,6 +1655,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="RCl"></A>
 <H2>RCl</H2>
+<P>
+relative clause, with all tenses
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1628,6 +1688,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="RP"></A>
 <H2>RP</H2>
+<P>
+relative pronoun
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1648,6 +1711,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="RS"></A>
 <H2>RS</H2>
+<P>
+relative
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1668,6 +1734,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="S"></A>
 <H2>S</H2>
+<P>
+declarative sentence
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1713,6 +1782,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Slash"></A>
 <H2>Slash</H2>
+<P>
+clause missing NP (S/NP in GPSG)
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1743,6 +1815,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Tense"></A>
 <H2>Tense</H2>
+<P>
+tense
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1773,6 +1848,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Text"></A>
 <H2>Text</H2>
+<P>
+text consisting of several phrases
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1823,6 +1901,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Utt"></A>
 <H2>Utt</H2>
+<P>
+sentence, question, word...
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -1888,6 +1969,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="VP"></A>
 <H2>VP</H2>
+<P>
+verb phrase
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>
@@ -2008,6 +2092,9 @@ Source: <A HREF="../api/Constructors.gf"><CODE>http://www.cs.chalmers.se/~aarne/
 
 <A NAME="Voc"></A>
 <H2>Voc</H2>
+<P>
+vocative or "please"
+</P>
 <TABLE CELLPADDING="4" BORDER="1">
 <TR>
 <TH>Function</TH>