With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Yellow Flicker Beat has been performed at Madison Square Garden.
text_B: This article details the 2010 -- 11 UEFA Europa League qualifying phase and play-off round .. Each tie was played over two legs , with each team playing one leg at home .. two legs. two-legged tie. The team that had the higher aggregate score over the two legs progressed to the next round .. two legs. two-legged tie. In the event that aggregate scores finished level , the away goals rule was applied ; i.e. , the team that scored more goals away from home over the two legs progressed .. two legs. two-legged tie. away goals rule. away goals rule. If away goals were also equal , then 30 minutes of extra time was played , divided into two 15-minute halves .. extra time. Extra time#Association football. The away goals rule was again applied after extra time ; i.e. , if there were goals scored during extra time and the aggregate score was still level , the visiting team qualified by virtue of more away goals scored .. away goals rule. away goals rule. extra time. Extra time#Association football. If no goals were scored during extra time , the tie was decided by a penalty shootout .. extra time. Extra time#Association football. penalty shootout. Penalty shootout ( association football ). All times are CEST -LRB- UTC +2 -RRB-. CEST. Central European Summer Time
not_related.