-- listen.i -- Library version 0.5.0 -- 0.4.1 - converted to ALANv3 SYNTAX listen_to = listen 'to' (obj) WHERE obj ISA THING ELSE "You can't listen to that!" Add To Every thing VERB listen_to DOES "You listen to" Say The obj. "." END VERB. End Add To. SYNTAX listen = listen. VERB listen DOES "You hear nothing unusual." END VERB.