With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kim Kardashian is discussed in the media.
text_B: `` Jingle Bells / U Ca n't Touch This '' is a 2005 Crazy Frog cover of the Christmas song `` Jingle Bells '' and a cover of `` U Ca n't Touch This '' , -LRB- originally MC Hammer -RRB- .. Crazy Frog. Crazy Frog. Jingle Bells. Jingle Bells. MC Hammer. MC Hammer. In Belgium , Holland , Australia , New Zealand , Sweden and France , `` Last Christmas '' instead of `` U Ca n't Touch This '' was added as B-side .
not_related.