Assertion: sailfish's sail | /r/HasProperty | the mainsail
Facets:
Source sentences:
text: Most modern designs have only one sail, the mainsail; however, the traditional catboat could carry multiple sails from the gaff rig.
text: Usually, a sailboat has two sails: a mainsail and a head sail or jib.
text: They have three (or fewer) sails: the mainsail, jib, and spinnaker.