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Table 6 F dep for prepositional phrase attachment

From: Benchmarking natural-language parsers for biological applications using dependency graphs

Parser Modified words F dep Modifying words F dep
Charniak-Lease 79.5 89.5
Bikel (0.9.8) 78.0 91.0
  1. Parser effectiveness for the task of attaching prepositions correctly to the words they modify and to the words which are doing the modifying.