Squibs: Consistent Validation of Manual and Automatic Sense Annotations with the Aid of Semantic Graphs Roberto Navigli author 2006 text journal article Computational Linguistics continuing periodical academic journal navigli-2006-squibs 10.1162/coli.2006.32.2.273 https://aclanthology.org/J06-2005/ 2006 32 2 273 281