The Compendium of Bheḷa 1.12.2

1.12.2

tatra kaścidrasaikatvaṃ rasasāmānyato ' bravīt | sātmyāsātmyāttathā dvitvaṃ traividhyaṃ sthānato ' pare ||

There, someone stated unity of taste based on the common nature of taste; / likewise duality from suitability and unsuitability; others stated triplicity based on location;