 Not all the different schools of Indian philosophy accept all of these different kinds of signification functions for words, and they hold substantially different views on the nature of words, meanings, and the relations between words and meanings. However, the above terminology holds true, in general, for most of the medieval schools. Let us note some of the important differences. Mīmāṃsā claims that the sole primary meaning of the word “bull” is the generic property or the class property (jāti) such as bull-ness, while the individual object which possesses this generic property, i.e., a particular bull, is only secondarily and subsequently understood from the word “bull”. The school called Kevalavyaktivāda argues that a particular individual bull is the sole primary meaning of the word “bull,” while the generic property bull-ness is merely a secondary meaning. Nyāya argues that the primary meaning of a word is an individual object qualified by a generic property (jāti-viśiṣṭa-vyakti), both being perceived simultaneously.