Subject	thoroughbred
Predicate	be raced at
Object	3 years old
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.2884
Neighborhood Sigma	0.3066
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source thoroughbreds are raced at 3 years old 3 Answers.com Questions