With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 1899, FC Barcelona was formed.
text_B: `` One Summer Dream '' is a song written and performed by the rock group Electric Light Orchestra -LRB- ELO -RRB- which made its first appearance on the band 's fifth album , Face the Music , as the last track off the album .. Electric Light Orchestra. Electric Light Orchestra. Face the Music. Face the Music ( Electric Light Orchestra album ). It also appeared on the box sets , Afterglow and Flashback .. Afterglow. Afterglow ( box set ). Flashback. Flashback ( Electric Light Orchestra album ). It was released as the B-side of the hit single `` Mr. Blue Sky '' in 1978 .. Mr. Blue Sky. Mr. Blue Sky. B-side. A-side and B-side. The album version includes an orchestra intro but part of it was cut for the single .. orchestra. orchestra. intro. introduction ( music ). `` One Summer Dream '' -LRB- on different singles with `` Mr. Blue Sky '' -RRB- has a fading difference for unknown reasons .. Mr. Blue Sky. Mr. Blue Sky. Backing vocals by Ellie Greenwich .. Ellie Greenwich. Ellie Greenwich. `` The seven ELO members outdo themselves , however , on One Summer Dream , a beautiful and evocative tune sung touchingly by Lynne .. A trifle sentimental perhaps , but lyrically and musically , it displays more emotion -LRB- not to mention pure ability -RRB- than one ordinarily hears from a rock group . ''. Charley Walters -LRB- 1 January 1976 Rolling Stone issue 203 -RRB-
not_related.