Assertion: horseshoe crab | /r/HasProperty | essential
Facets:
value: to a healthy ecosystem
type: PURPOSE
value: to the local ecosystem
type: TRANSITIVE-OBJECT
value: to making a product
type: PURPOSE
Source sentences:
text: Horseshoe crabs are essential to making a product that is used to test medical products for contamination.
text: Horseshoe crabs are an essential food source for migratory birds on the East coast and are also important to humankind -
text: Only about 10 in 90,000 of a mother crab’s eggs will reach adulthood, but that’s only because the horseshoe crab and its eggs are so essential to the local ecosystem.
text: Horseshoe crabs are essential to a healthy ecosystem