9.  ADL Sentence Structure

     In	the following extended BNF description of  ADL	sen-
tences,	 terminal  symbols  are	 in  BOLD UPPERCASE and	non-
terminals in lowercase.	 A CONJ	is one of the word "and",  a
comma  (","),  or  the word "but";  a SEP is one of a period
("."), the word	"then",	or a  newline.	 Comment  statements
start with "--"	and continue to	the end	of the line.


     input-line	     =	( sentence  SEP	) *

     sentence	     =	simple-sent  --	Verb, Iobj, and	Dobj are
				     --	as you would expect
		     =	noverb-sent  --	Verb = NOVERB;	Iobj and Dobj
				     --	are as you would expect
		     =	teller-sent  --	Verb = TELLER;	Iobj = object;
				     --	Dobj = STRING

     simple-sent     =	verb-phrase  [ dobj-list ]  [ prep  object ]  [	prep ]
		     =	verb-phrase  object  dobj-list	[ prep ]

     noverb-sent     =	[ dobj-list ]  [ prep  object ]	 [ prep	]
		     =	object	dobj-list  [ prep ]

     teller-sent     =	object	","  STRING
		     =	object	","  VERB  REST-OF-STRING

     verb-phrase     =	VERB  PREP *

     dobj-list	     =	object	( CONJ	object ) *

     object	     =	[ ARTICLE ]  modif  NOUN
		     =	[ ARTICLE ]  modif
		     =	[ ARTICLE ]  NOUN
		     =	[ ARTICLE ]  OBJECT
		     =	STRING

     modif	     =	VERB
		     =	ADJEC

     prep	     =	PREP
		     =	PREP  PREP
		     =	PREP  object  PREP