<Tr> <Td_colspan="2"> A road sign in Sinhalese, Tamil and English </Td> </Tr> <Tr> <Th> Official languages </Th> <Td> Sinhalese, Tamil </Td> </Tr> <Tr> <Th> Main foreign languages </Th> <Td> English </Td> </Tr> <Tr> <Th> Sign languages </Th> <Td> multiple sign languages </Td> </Tr>

How many languages are there in sri lanka