I need to find the 'Built-in predicates' section in the GNU Prolog manual more efficiently. Instead of scrolling, please use the table of contents to navigate directly to 'Chapter 8: Built-in predicates'. Once there, locate the 'Stream I/O' subsection (8.10) and identify the 'open/4' predicate. Provide its full description and the names of the predicates for writing a term to a file and closing a file.
Navigate to the main GNU Prolog manual page at 'http://gprolog.org/manual/gprolog.html'. Locate the table of contents or index on the left side (or top) of the page. Click on the link for 'Chapter 8: Built-in predicates'. Within Chapter 8, locate and click on the link for '8.10 Stream I/O' or similar. Find the 'open/4' predicate within section 8.10 and extract its full description. Within section 8.10 (or closely related I/O sections), identify a predicate for writing a term to a file (e.g., `write_term/3` or `write/2`) and extract its name and a brief description. Within section 8.10 (or closely related I/O sections), identify a predicate for closing a file (e.g., `close/2`) and extract its name and a brief description. Synthesize the descriptions for `open/4`, the identified write predicate, and the identified close predicate.
The agent successfully uses the table of contents to navigate to 'Chapter 8: Built-in predicates'. The agent successfully navigates to '8.10 Stream I/O'. The agent identifies `open/4` and provides its description, stating it 'opens the file FileName with mode Mode and unifies Stream with the stream-term associated with the opened stream'. The agent identifies `write_term/3` (or `write/2`, `put_char/2`, etc.) as a predicate for writing a term/data to a file and provides its description. The agent identifies `close/2` (or `close/1`) as the predicate for closing a file and provides its description.