Assertion: long horseshoe crab | /r/CapableOf | return to the beach of their birth
Facets:
value: for spawning
type: PURPOSE
Source sentences:
text: How long horseshoe crabs live, whether they return to the beach of their birth for spawning, why their life cycles seem directed by the moon, where they disappear to for the other 10 months of the year-all these questions remain mysteries.