Assertion: jellyfish's nematocyst | /r/HasProperty | triggered by contact
Facets:
value: by prey
type: OTHER
value: by predator
type: OTHER
Source sentences:
text: When a nematocyst is triggered by contact by predator or prey, pressure builds up rapidly inside it up to 2,000 pounds per square inch (14,000 kPa) until it bursts.