With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Istanbul is a person.
text_B: PFC Ludogorets Razgrad II -LRB- ПФК Лудогорец Разград 2 -RRB- or Ludogorets Razgrad 2 is a Bulgarian football team based in Razgrad .. Razgrad. Razgrad. PFC Ludogorets Razgrad. PFC Ludogorets Razgrad. Founded in 2015 , it is the reserve team of PFC Ludogorets Razgrad , and currently plays in B Group , the second level of Bulgarian football .. Razgrad. Razgrad. reserve team. reserve team. PFC Ludogorets Razgrad. PFC Ludogorets Razgrad. B Group. Bulgarian B Professional Football Group. Obliged to play one level below their main side , Ludogorets II is ineligible for promotion to A Group and also can not compete in the Bulgarian Cup .. A Group. Bulgarian A Football Group. Bulgarian Cup. Bulgarian Cup
not_related.