In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
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Question: Keith Richards ( born 18 December 1943 ) is an English musician , singer , and songwriter , best known as the co-founder , guitarist , secondary vocalist , and co-principal songwriter of the Rolling Stones .

Answer: Keith Richards ( born 18 December 1943 ) is an English guitarist best known as a founder member of the Rolling Stones .


Question: The J1 League ( Japanese : J1リーク ゙ , Hepburn : J1 Ri ̄ gu ) or simply J1 is the top division of the Japan Professional Football League ( Japanese : 日本フ ゚ ロサッカーリーク ゙ , Hepburn : Nihon Puro Sakka ̄ Ri ̄ gu ) and the top professional association football J.League in Japan .

Answer: J1 League is the top grouping of the Japan Professional Football League ( 日本フ ゚ ロサッカーリーク ゙ , Nippon Puro Sakka ̄ Ri ̄ gu ) .


Question: In the oxygen- and sulfur-containing aromatic rings , one of the electron pairs of the heteroatoms contributes to the aromatic system ( similar to the non-basic nitrogen-containing rings ) , whereas the second lone pair extends in the plane of the ring ( similar to the primary nitrogen-containing rings ) .

Answer:
In the oxygen- and sulfur-containing aromatic rings , one of the electron pairs of the heteroatoms contributes to the aromatic system ( similar to the non-basic nitrogen-containing rings ) .