Subject	optical density
Predicate	be related to
Object	concentration
Modality	Modality Occurrences TBC[concentration of substance] 1
Polarity	POSITIVE
Plausibility	0.6611
Neighborhood Sigma	0.6633
Local Sigma	0.7350
Example Sentences	Sentence Occurrences Source optical density is related to concentration 4 Google Autocomplete optical density is related to the concentration of substance 1 Google Autocomplete