Re: [OpenCyc-devel] Query for all instances of a predicate

[<dm...@us...>]

Change 
(NEW-CYC-QUERY
  (LIST #$isa ?X #$SpatialThing) #$PeopleDataMt
  (LIST :MAX-NUMBER 1))

to

(NEW-CYC-QUERY
  (LIST #$isa '?X #$SpatialThing) #$PeopleDataMt
  (LIST :MAX-NUMBER 1))

Thats a single QUOTE on ?X




Here are some other legal forms:

(NEW-CYC-QUERY
  '(#$isa ?X #$SpatialThing) #$PeopleDataMt   
  (LIST :MAX-NUMBER 1))


(NEW-CYC-QUERY
  (QUOTE (#$isa ?X #$SpatialThing)) #$PeopleDataMt   ;; identical to the above
  (LIST :MAX-NUMBER 1))


(NEW-CYC-QUERY
  `(#$isa ?X #$SpatialThing) #$PeopleDataMt     ;;; Backquote reader
  (LIST :MAX-NUMBER 1))

Here is probly the most prefered:

(NEW-CYC-QUERY
  '(#$isa ?X #$SpatialThing) #$PeopleDataMt
  '(:MAX-NUMBER 1))

Here is a backquoted "`" way  the backquote means to take the item litteral the "," in front of COL mean (EVAL COL) -> #$SpatialThing

(CLET ((COL  #$SpatialThing)(NUM 1))
 (NEW-CYC-QUERY
  `(#$isa ?X ,COL)  #$PeopleDataMt
  `(:MAX-NUMBER ,NUM)))








  ----- Original Message ----- 
  From: Paul Fodor 
  To: OpenCyc developers 
  Sent: Monday, August 04, 2008 4:17 PM
  Subject: [OpenCyc-devel] Query for all instances of a predicate


  Dear Sir,

  I am a OpenCyc newbie and I have some questions that I could not figure out yet. If anyone has time and can respond to my questions, please let me know.

  Question 1: I access OpenCyc from Java and I wonder how can I query for all instances of a predicate or class. I want to collect a list of all results.
  For instance, I want to collect all spatial things:   (#$isa ?X #$SpatialThing)

  or, I want to collect all pairs of people liking other people: (#$likesAsFriend ?X ?Y)

  For example, 

  (NEW-CYC-QUERY
    (LIST #$isa #$BillClinton #$SpatialThing) #$PeopleDataMt
    (LIST :MAX-NUMBER 1))

  works, but 

  (NEW-CYC-QUERY
    (LIST #$isa ?X #$SpatialThing) #$PeopleDataMt
    (LIST :MAX-NUMBER 1))

  tells me that ?X is unbound.

  Question 2: How do I collect this list in Java?

  Thank you,
  Paul.




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