aitch > pl

Welcome to SWI-Prolog (Version 2.7.16)
Copyright (c) 1993-1996 University of Amsterdam.  All rights reserved.

For help, use ?- help(Topic). or ?- apropos(Word).

1 ?- [all].

proc.p compiled, 0.00 sec, 2,936 bytes.
dict.p compiled, 0.00 sec, 6,632 bytes.
all compiled, 0.00 sec, 10,276 bytes.

Yes
2 ?- loop.

|: bluebird.
bluebird is a noun.
with singular bluebird and plural bluebirds

|: bluebirds.
bluebirds is a noun.
with singular bluebird and plural bluebirds

|: run.
run is a verb.
with singular runs and plural run

|: the.
the is a det.
with singular the and plural the

|: quit.

Yes
3 ?- halt.

c aitch >exit
c aitch >