With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: School 2013 has no role for Choi Daniel.
text_B: Ratu Seru Epenisa Cakobau -LRB- -LSB- ˈseru epeˈniːsa ðakomˈbau -RSB- ; occasionally spelled Cacobau or phonetically Thakombau -RRB- -LRB- c. 1815 -- 1 February 1883 -RRB- was a Fijian Ratu and warlord -LRB- Vunivalu -RRB- who united part of Fiji 's warring tribes under his leadership , establishing a united Fijian kingdom .. Ratu. Ratu. Fiji. Fiji. warlord. warlord. Vunivalu. Vunivalu of Bau. united Fijian kingdom. Kingdom of Fiji
not_related.