identify "audience" as a subject, verb, predicate nominative, direct object, indirect object, object of preposition, appositive, direct address, adjective, adverb, preposition, or interjection.
Edward stood in front of the audience to speak.
Subject: Edward
Verb: stood
Object of Preposition: in front of the audience
Infinitive phrase: to speak
Predicate Nominative: audience (renames the object of preposition)