Subject	ribosome
Predicate	be present in
Object	mitochondria
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.4897
Neighborhood Sigma	0.4897
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source ribosomes is present in chloroplast and mitochondria 2 Answers.com Questions