Assertion: sperm whale's spermaceti oil | /r/HasProperty | valuable
Facets:
Source sentences:
text: The sperm whale was named for the valuable spermaceti oil (wax) that this whale produces in the spermaceti organ (located in its head).
text: The sperm whale was named for the valuable spermaceti oil (wax) that this whale produces in the spermaceti organ (located in its head).