Rather, we aim to preserve the phrases in the sentence that can potentially result in comma splices and strip away the rest so that the parser has the best chance to produce the expected parse patterns.
using the parse tree of the original sentence, we remove (1) introductory phrases at the beginning of a sentence, which include transition phrases such as "for example", as well as prepositional phrases and adverbials 6 ; (2) clauses that are properly connected to the rest of the sentence by a coordinate conjunction; (3) subordinate clauses that are properly connected to the rest of a sentence by subordinate conjunctions or relative pronouns; and (4) dialogue tags such as "he claimed" or "he argued" 7 .