81.   At the opening ceremony, speakers focused on the main themes of food and human rights.

82.   Beyond those main themes, the marches had diverse demands.

83.   Bipartisanship, after a rancorous contest, was a main theme of his speech.

84.   Bolstering defenses was the main theme early in a draft loaded with talent at defensive tackle, wide receiver and along the offensive line.

85.   But he stressed conservation and country park development would remain the main themes for southern Lantau.

86.   Curbing demand for narcotics and combatting money-laundering will be among the main themes of a U.N. drug conference which opens next week.

87.   European integration would be the main theme of the talks, the statement said.

88.   He focused on crime, which is increasing in South Africa and has been a main theme in campaigning by most parties.

89.   He was no conventional teacher and would often digress, mostly into an autobiographical anecdote, only to return to the main theme of his class.

90.   Health and social development will also be main themes at the conference.