Text: Stevenson might simply have trouble believing that mustachioed, tobacco-chewing men wearing big, black T-shirts can resist the temptation to cry for blood.
Entailment: Stevenson might not have believed that mustached, tobacco chewing men, who were wearing black t shirts would resist the temptation to cry for blood.
Contradiction: Stevenson would have believed that mustached, tobacco chewing men, who were wearing black t shirts would resist the temptation to cry for blood.