the := word &
[ ORTH "the",
  HEAD det,
  SPR < >,
  COMPS < > ].

this := word &
[ ORTH "this",
  HEAD det,
  SPR < >,
  COMPS < > ].

these := word &
[ ORTH "these",
  HEAD det,
  SPR < >,
  COMPS < > ].

dog := word &
[ ORTH "dog",
  HEAD noun,
  SPR < phrase & [HEAD det] >,
  COMPS < > ].

dogs := word &
[ ORTH "dogs",
  HEAD noun,
  SPR < phrase & [HEAD det] >,
  COMPS < >  ].

cat := word &
[ ORTH "cat",
  HEAD noun,
  SPR < phrase & [HEAD det] >,
  COMPS < > ].

aardvark := word &
[ ORTH "aardvark",
  HEAD noun,
  SPR < phrase & [HEAD det] >,
  COMPS < > ].

barks := word &
[ ORTH "barks",
  HEAD verb,
  SPR < phrase &
        [HEAD noun,
         SPR <>] >,
  COMPS < > ].

bark := word &
[ ORTH "bark",
  HEAD verb,
  SPR < phrase &
        [HEAD noun,
         SPR <>] >,
  COMPS < > ].

sleeps := word &
[ ORTH "sleeps",
  HEAD verb,
  SPR < phrase &
        [HEAD noun,
         SPR <>] >,
  COMPS < > ].

sleep := word &
[ ORTH "sleep",
  HEAD verb,
  SPR < phrase &
        [HEAD noun,
         SPR <>] >,
  COMPS < > ].

chased_1 := word &
[ ORTH "chased",
  HEAD verb,
  SPR < phrase & 
       [ HEAD noun,
         SPR <>] >,
  COMPS < phrase & 
          [HEAD noun,
           SPR <>] > ].

;;; added as answer to exercise 5.1.1 - 3
chased_2  := word &
[ ORTH "chased",
  HEAD verb,
  SPR < phrase & 
       [ HEAD noun,
         SPR <>],
 	phrase & 
       [ HEAD noun,
         SPR <>] >,
  COMPS < phrase & 
          [HEAD noun,
           SPR <>] > ].

;;; added as answer to exercise 5.1.1 - 1
gave_1 := word &
[ ORTH "gave",
  HEAD verb,
  SPR < phrase & 
       [ HEAD noun,
         SPR <>] >,
  COMPS < phrase & 
          [HEAD noun,
           SPR <>],
	  phrase & 
          [HEAD noun,
           SPR <>] > ].

;;; added as answer to exercise 5.1.1 - 2
gave_2 := word &
[ ORTH "gave",
  HEAD verb,
  SPR < phrase & 
       [ HEAD noun,
         SPR <>] >,
  COMPS < phrase & 
          [HEAD noun,
           SPR <>],
	  phrase & 
          [HEAD prep,
           SPR <>,
	   COMPS <>] > ].

;;; added as answer to exercise 5.1.1 - 2
to := word &
[ ORTH "to",
  HEAD prep,
  SPR <>,
  COMPS < phrase & 
          [HEAD noun,
           SPR <>] > ].