A text passage is analyzed to determine whether it contains a "be" verb or
a "have" verb. If so, syntactic dependencies are obtained from the text
passage, a direct object relation involving the "be" verb or "have" verb
is obtained, and a verbal form of a noun appearing in the first direct
object relation is obtained. The syntactic dependencies are rewritten
based on the verbal form of the noun. Different syntactic rewriting
criteria are applied if the text passage also contains a noun object
preceding a past participle verb, or also contains an active present
participle verb.