11.   Since Monday, company officials have been locked in tense negotiations with the unions and representatives of the national and provincial governments in and around Vancouver, British Columbia.

12.   Tense negotiations occur almost daily at the Martinez household in suburban Atlanta.

13.   Tense negotiations ensued between the Muslim supporters of the emirate and the indigenous people, who belong to several ethnic groups and are mostly Christian or animist.

14.   That is not to say that this summit meeting did not entail tense negotiations at very high levels, fraught with potential for misunderstanding and bruised relations.

15.   The actual talks had taken place in New York after a night and a day of tense negotiations punctuated by leaked warnings of the imminent collapse.

16.   The agreement, reached after months of tense negotiations, includes wage and benefit concessions from the unions and reduced payments to bus companies.

17.   The tense negotiations between Kirk Kerkorian and Chrysler Corp. dragged on for nearly two months with some progress.

18.   The tense negotiations between the rebels and the Tajik and Russian authorities have oscillated between near breakthroughs and near breakdowns, fraying nerves on all sides.

19.   The vote Wednesday night, which followed hours of tense negotiations, was a big step in moving the tobacco bill to final passage by the Senate.

20.   The tense negotiations between President Clinton and the Republican Congress had put both provisions at risk.