31.   Whether that is true has become a favorite topic of debate amongst environmentalists, industry advocates and policymakers alike.

32.   Our favorite topic is who else died this year.

33.   Bush also faces stiff competition in the matryoshka contest from Clinton, who remains a favorite topic for satire in Russia.

34.   Her romance with American Rhodes scholar Ian Klaus is a favorite topic for tabloid newspapers.

35.   The flurry of seismic activity has become a favorite topic of conversation.

36.   Sex and relationships are a favorite topic, with racism and drugs not far behind.