Assertion: purple sea urchin | /r/HasProperty | important model
Facets:
value: in biology
type: LOCATION
value: for biomedical research
type: PURPOSE
Source sentences:
text: Even though the purple sea urchin has been an important model for biomedical research, its ageing process has not been studied in detail.
text: The purple sea urchin, S. purpuratus, is an important model organism in biology.