The Department of Linguistics enters into the study of semantics in every word / sentence to explore the “language game”. Irish Gnome Shut Up Liver You’re Fine. From the suggestions of Wittgenstein, British English John Langshaw Austin and American-born John Rogers Searle in the ’50s and’ 60s gave a speech theory. Because Austin realizes that, whoever says something, it means he or she “does something”. And the crucial question in understanding the sentence is not finding whether the sentence is right or wrong, but whether the subject succeeds in understanding the intent of the speaker.