Naohiko Noguchi Masanori Takahashi Hideki Yasukawa Generating Natural Language Responses Appropriate to Conversational Situation - In the Case of Japanese. 264-283 1987 conf/lp/1987 LP db/conf/lp/lp87.html#NoguchiTY87 http://dx.doi.org/10.1007/3-540-19426-6_17