Assertion: horseshoe crab's part | /r/HasProperty | located after mandible
Facets:
Source sentences:
text: Two pairs of maxillae on their heads (additional mouth parts located after the mandibles)
text: They have mouths made up of one pair of mandibles (which are eating appendages behind the crustacean's antennae) and two pairs of maxillae (the mouth parts located after the mandibles).