<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.huyo, mwanzoni mwa karne hii alitengeneza nadharia ambayo kwayo kila lugha ni mfumo wa mahusiano yanayofuata kanuni maalumu.  <response>: in the early 2000s, he once showed me a folder that was an anthology all his song lyrics. 