Squibs and Discussions: WordNet Nouns: Classes and Instances George A Miller author Florentina Hristea author 2006 text journal article Computational Linguistics continuing periodical academic journal miller-hristea-2006-squibs 10.1162/coli.2006.32.1.1 https://aclanthology.org/J06-1001/ 2006 32 1 1 3