The Notion of Argument in Prepositional Phrase Attachment Paola Merlo author Eva Esteve Ferrer author 2006 text journal article Computational Linguistics continuing periodical academic journal merlo-ferrer-2006-notion 10.1162/coli.2006.32.3.341 https://aclanthology.org/J06-3002/ 2006 32 3 341 378