21.   Few companies are the subject of such vigorous debate on Wall Street as America Online.

22.   For compared with the record of vigorous debate documented by the Architectural History Foundation, the modern disruption begins to look painfully bland.

23.   For several legislative sessions in a row, the suitability of our state bird was the subject of vigorous debate.

24.   He also stoked a vigorous debate about the initiative and his own commitment to the constitutional separation of church and state.

25.   He said it would be published soon in The Proceedings of the National Academy of Sciences and added that he welcomed vigorous debate about it.

26.   Her fame made her the emblem of a vigorous debate about the efficacy and legitimacy of so-called psychic detectives.

27.   It was named after vigorous debate among all political sectors, including the former guerrillas now in the legislature.

28.   Just how and why loyalties could shift so dramatically have set off a surprisingly vigorous local debate.

29.   Lewis predicted a vigorous debate when the legislation goes to the House floor, possibly Monday or Tuesday.

30.   More vigorous debates on regulatory issues lie ahead.