Central government officials were divided into sixteen ranks, the six members of the top rank forming a type of cabinet, with the top official being elected every three years. In the "Sol" rank, the first ("Jwapyeong") through the sixth ("Naesol") officials were political, administrative, and military commanders. In the "Deok" rank, the seventh ("Jangdeok") through the eleventh ("Daedeok") officials may have headed each field. "Mundok", "Mudok", "Jwagun", "Jinmu" and "Geuku" from the twelfth to the sixteenth, may have been military administrators. According to the "Samguk Yusa", during the Sabi period, the chief minister ("Jaesang") of Baekje was chosen by a unique system. The names of several candidates were placed under a rock (Cheonjeongdae) near Hoamsa temple. After a few days, the rock was moved and the candidate whose name had a certain mark was chosen as the new chief minister. Whether this was a form of selection-by-lot or a covert selection by the elite is not clear. Baekje was established by immigrants from Goguryeo who spoke what could be a Buyeo language, a hypothetical group linking the languages of Gojoseon, Buyeo, Goguryeo, and Baekje. In a case of diglossia, the indigenous Samhan people, having migrated in an earlier wave from the same region, probably spoke a variation or dialect of the same language. Baekje artists adopted many Chinese influences and synthesized them into a unique artistic tradition. Buddhist themes are extremely strong in Baekje artwork. The beatific Baekje smile found on many Buddhist sculptures expresses the warmth typical of Baekje art. Taoist influences are also widespread. Chinese artisans were sent to the kingdom by the Liang Dynasty in 541, and this may have given rise to an increased Chinese influence in the Sabi period. The tomb of King Muryeong (501–523), although modeled on Chinese brick tombs and yielding some imported Chinese objects, also contained many funerary objects of the Baekje tradition, such as the gold crown ornaments, gold belts, and gold earrings. Mortuary practices also followed the unique tradition of Baekje. This tomb is seen as a representative tomb of the Ungjin period.