<Tr> <Th> short </Th> <Th> long </Th> <Th> short </Th> <Th> long </Th> </Tr> <Tr> <Th> Close </Th> <Td> i (i) </Td> <Td> iː (ii) </Td> <Td> u (o) </Td> <Td> uː (oo) </Td> </Tr> <Tr> <Th> Mid </Th> <Td> ɛ (e) </Td> <Td> eː (ee) </Td> <Td> ɔ (u) </Td> <Td> oː (uu) </Td> </Tr> <Tr> <Th> Open </Th> <Th_colspan="2"> </Th> <Td> a (a) </Td> <Td> aː (aa) </Td> </Tr>

Where did the xhosa and the zulu languages get their clicks sounds from