Text: Both men are noted risk-takers and cutting-edge improvisers whose penchant for the maniacal makes them ideal partners (Karl Stark, the Philadelphia Inquirer ). Gene Seymour writes in Newsday that there's a sense of play between the two that's almost kinda sweet.
Entailment: They both were known for taking risks and for the improvising skills.
Contradiction: They were bitter rivals that refused to get along.