<Tr> <Td> Ruvuma Region </Td> <Td> Songea </Td> <Td> 6 </Td> <Td> 63,669 </Td> <Td> 1,376,891 </Td> <Td> 57xxx </Td> <Td> Southern Highlands </Td> <Td> </Td> </Tr> <Tr> <Td> Shinyanga Region </Td> <Td> Shinyanga </Td> <Td> 5 </Td> <Td> 18,901 </Td> <Td> 1,534,808 </Td> <Td> 37xxx </Td> <Td> Lake </Td> <Td> </Td> </Tr> <Tr> <Td> Simiyu Region </Td> <Td> Bariadi </Td> <Td> 5 </Td> <Td> 25,212 </Td> <Td> 1,584,157 </Td> <Td> 39xxx </Td> <Td> Lake </Td> <Td> </Td> </Tr> <Tr> <Td> Singida Region </Td> <Td> Singida </Td> <Td> 6 </Td> <Td> 49,340 </Td> <Td> 1,370,637 </Td> <Td> 43xxx </Td> <Td> Central </Td> <Td> </Td> </Tr>

Mention the name of three countries located in the equatorial region