Assertion: manatee's bone | /r/HasProperty | valuable
Facets:
Source sentences:
text: Manatees were also hunted for their valuable bones, which were used to make "Special Potions.
text: The meat, oil, bones, and skins are valuable items sold in markets.
text: Manatees were also hunted for their valuable bones, which were used to make "Special Potions.
text: The meat, oil, bones, and skin of manatees are valuable items.