Subject	lead
Predicate	be used
Object	as a radioactive shield
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9741
Neighborhood Sigma	0.9744
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source lead is used as a radioactive shield 2 Google Autocomplete, Answers.com Questions