Assertion: spider's pattern | /r/CapableOf | induce intended prey
Facets:
value: to move towards the portia
type: PURPOSE
Source sentences:
text: When stalking web-building spiders, Portia try to make different patterns of vibrations in the web that aggressively mimic the struggle of a trapped insect or the courtship signals of a male spider, repeating any pattern that induces the intended prey to move towards the Portia.