Subject	vestigial structure
Predicate	provide
Object	clue
Modality	Modality Occurrences TBC[clues about species evolutionary past] 1 TBC[clue to evolutionary history of species] 1
Polarity	POSITIVE
Plausibility	0.9429
Neighborhood Sigma	0.9429
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source vestigial structures provide clues 4 Google Autocomplete vestigial structures provide clues about a species evolutionary past 1 Google Autocomplete vestigial structures provide a clue to the evolutionary history of a species 1 Answers.com Questions