... analyze not only sentences with grammati- cal errors and ellipses, but also long sentences, ow- ing to their complexity. Thus, ill-formed sentences include not only ungrammatical sentences, but ... 736 consecutive sentences in a computer man- ual, the ESG parser (McCord, 1991) generated mul- tiple parses for 150 sentences. In this experiment, we divided the original 736 sentences into ... original 736 sentences into two texts, one a discourse of 400 sentences and the other a discourse of 336 sentences. Of the 150 sentences with multiple parses, 24 were incorrectly analyzed in...