Complex sentence: Chemistry is a Japanese popular music R&B duo, and they are Dochin Yoshikuni (堂珍嘉邦, born Nov 17 1978) and Kawabata Kaname (川畑要, born Feb 28 1979).
Split into simpler sentences: Chemistry is a Japanese popular music R&B duo. They are Dochin Yoshikuni (堂珍嘉邦, born Nov 17 1978) and Kawabata Kaname (川畑要, born Feb 28 1979).