. . . . . . . . "Speak_on_topic" . . "A Speaker addresses an Audience on a particular Topic. The Audience is generally passive, although for many types of address (including academic talks and press conferences), a discussion or question-answer period is virtually always required. McNamara addressed congress on the state of affairs of the Department of Defense."@en . . . . . . . . . . . . . . . . "523"^^ . . . . . . . . . . "2003-01-23T16:29:18+01:00"^^ . . . . . .