adjustments in Phrasebook and synopsis

examples/phrasebook/SentencesTha.gf

@@ -1,6 +1,7 @@
 concrete SentencesTha of Sentences = NumeralTha ** SentencesI - [
     PGreetingMale, PGreetingFemale,
     GObjectPlease,
+    IMale, YouFamMale, YouFamFemale,
     ACitizen
   ] with 
   (Syntax = SyntaxTha),
@@ -17,6 +18,9 @@ lin
 
   ACitizen p n = mkCl p.name (mkVP (mkCN n (P.personN R.khon_s))) ;
 
+  IMale = mkPerson (R.mkNP "ผม") ;
+  YouFamMale, YouFamFemale = mkPerson (R.mkNP "เธอ") ;
+
 oper
   thpron = R.thpron ;
 }