text_combined: semantics network theory reference kiyoshi ishikawa network theory reference kiyoshi ishikawa hosei university noting specific inadequacies truthconditional approaches ishikawa develops dynamic theory reference incorporating features discourse representation theory file change semantics situation semantics also deals nonmonotonic belief revision argues task natural language semantics describe meaning terms psychological relation language cognition external reality approach linguistic expression meaning potential change information state cognitive agent reference understood link real individual external agent agent act link character linguistic frame individuation characters linguistic nonlinguistic frames target inquiry distinction referential attributive uses definite descriptions analyzed construction conversation scenarios addition ishikawa extends theory analysis belief attitude reports application theory cleft pseudocleft constructions also outlined presented accessible style ishikawa theory interest scholars cognitive science artificial intelligence philosophy well linguistics perfect bound 139 pp prepaid orders u check money order 20 00 ph 3 50 us 5 00 5 50 iulc publications 720 e atwater ave bloomington 47401 usa email iulc indiana edu http php indiana edu iulc