It is impossible to predict which criminals are most likely to become repeat offenders. No chickens are four-legged. Some birds are chickens. Therefore, some birds are not four-legged. No parrots are four-legged.
Some birds are turkeys.
Therefore, some birds are not four-legged. B. All chickens are four-legged. Some birds are chickens. Therefore, some birds are not four-legged. No men are three-eyed.