The IARC classifies "d"-limonene under Class 3&colon; "not classifiable as to its carcinogenicity to humans". Group 3 means that the agent is not classifiable as to its carcinogenicity to humans. The IARC evaluates MDI as Group 3 "not classifiable as to its carcinogenicity in humans". Other negative spirits are incorporeal chthonic beings classifiable between spirits of the dead and gods. Texan cities classifiable as such specifically include Abilene, Austin, and Corpus Christi. The duration of a normal erection before it is classifiable as priapism is still controversial. Moreover, a few deities are not easily classifiable under these terms. Less clearly classifiable as deities are jaguar protectors (perhaps ancestors) and jaguar transformers. Most of the classifiable mtDNA was ascribed to "Ursus", coming predominately from "Ursus ingressus". These Specific Objects inhabited a space not then comfortably classifiable as either painting or sculpture. A number of dialects are not easily classifiable according to the above scheme. Tourist attractions are classifiable as natural or anthropogenic. Many ceramics are not any easily classifiable shape. The dependency ratio therefore expresses the proportion (within the entire universe) of such classifiable objects. Gojira's sound is not easily classifiable as they blend several styles.