Ann A. Copestake Slacker Semantics: Why Superficiality, Dependency and Avoidance of Commitment can be the Right Way to Go. 1-9 2009 EACL http://www.aclweb.org/anthology/E09-1001 conf/eacl/2009 db/conf/eacl/eacl2009.html#Copestake09