change Food to Words in Phrasebook, since it's unpractical to have many small modules; added syntactic forms and words

examples/phrasebook/Words.gf

@@ -0,0 +1,13 @@
+-- (c) 2009 Aarne Ranta under LGPL
+
+abstract Words = Sentences ** {
+  fun
+    Wine, Cheese, Fish, Pizza : Kind ;
+    Fresh, Warm, Italian, 
+      Expensive, Delicious, Boring : Quality ;
+
+    Bar, Restaurant, Toilet : PlaceKind ;
+
+    Euro, Dollar, Lei : Currency ;
+
+}