<Li> political hip hop </Li> <Tr> <Th> Cultural origins </Th> <Td> Mid-1970s, Los Angeles, United States </Td> </Tr> <Tr> <Th> Typical instruments </Th> <Td> <Ul> <Li> Drum machine </Li> <Li> rapping </Li> <Li> sampler </Li> <Li> synthesizer </Li> </Ul> </Td> </Tr> <Ul> <Li> Drum machine </Li> <Li> rapping </Li> <Li> sampler </Li> <Li> synthesizer </Li> </Ul>

Name one of the west-coast california based hip-hop groups