With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ice and rock are primarily what Pluto is made of.
text_B: `` Odorono '' is a song written by Pete Townshend that was first released by English rock band The Who on their 1967 album The Who Sell Out .. The Who. The Who. The Who Sell Out. The Who Sell Out. Pete Townshend. Pete Townshend. Townshend sings the lead vocal rather than normal Who lead singer Roger Daltrey .. Roger Daltrey. Roger Daltrey. The song praises the virtues of an actual American deodorant named `` Odo-Ro-No '' .. deodorant. deodorant
not_related.