He proposed to describe kinship terms and terminologies as either descriptive or classificatory. Kin terminologies can be either descriptive or classificatory. Such an understanding of ontological categories, however, is merely taxonomic, classificatory. Meitei kinship terms are classificatory with an exception of some descriptive terms. Within common typologies, the Hawaiian system is the simplest classificatory system of kinship. Their kinship system can be described in terms of Iroquois classificatory pattern. Haida uses instrumental prefixes, classificatory prefixes, and directional suffixes to derive verbs. Some verbal roots encode number in their lexical definition (see classificatory verbs above). The system has both classificatory and descriptive terms. A trichotomy is a three-way classificatory division. Bailey inherited from Blavatsky and Leadbeater a predilection for profuse details and complex classificatory schemes. Western Apache uses a classificatory verb system comparable to both the Jicarilla and Mescalero Apaches. The first published Chinese psychiatric classificatory scheme appeared in 1979. Preference is given to a conjugal relationship with the (classificatory) mother's mother's brother's daughter. Note that there is no possibility of any classificatory cousins sharing the same mother.