Question: When did the boy band consisting of Eun Ji-won, Lee Jai-jin, Kim Jae-duck, Kang Sung-hoon, Ko Ji-yong and Jang Su-won disband?
Sentence (from "Sechs Kies"): They are the "1st-generation K-Pop idols" and were named as one of the top boy groups in the 90's.
Relevant evidence: Yes