<prompt> Translate the following text to EnglishKatika kisiwa kikubwa cha Borneo, majimbo ya Sarawak na Sabah ya Malaysia Mashariki yanazunguka eneo la sultanate ya Brunei yenye mafuta mengi.  <response>: On the great island of Borneo, East Malaysias states of Sarawak and Sabah surround the enclave of the oil-rich sultanate of Brunei. 