Assertion: manta ray | /r/AtLocation | captivity
Facets:
value: rarely
type: DEGREE
value: due to their size
type: CAUSE
Source sentences:
text: Due to their size, mantas are rarely kept in captivity and few aquaria currently display them.
text: Due to their size, it is rare for mantas to be kept in captivity and few aquariums currently display them.
text: Due to their size, it is rare for mantas to be kept in captivity and few aquariums currently display them.