A database solution can be had without backtracking if it's designed properly. I think the right combination of references and indirection would do it. If the first table listed the object's name, a unique ID# of some sort, and bits to indicate if it was an object, operator, or both, the second table would simply be tuples of object, operator, object. Index all three columns separately on the second table, and any of the sample queries you describe should be straightforward.
To address the problem of 'real' objects only being in one place at a time, that's a programming issue: The object ID# in question has records that indicate it is real, and with Kudra. The definition for real things could specify that they can only be with one person at a time. The code would check before adding a new assertion that the book is with someone that it can be with more than one person at once.
The data structure isn't the hard part. Figuring out the tuples to put in the database is. I'm not sure what format OpenCYC
is in, but it might be a good start, depending on what you want your AI to do.
Spring: Forces, Coiled Again!
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||