With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 1975 was the year when Anderson Silva was born.
text_B: Anderson da Silva -LRB- -LSB- ˈɐdeʁso ˈsiwvɐ -RSB- ; born April 14 , 1975 -RRB- is a Brazilian mixed martial artist and former UFC Middleweight Champion .. Middleweight. Middleweight ( MMA ). mixed martial artist. mixed martial arts. UFC Middleweight Champion. UFC Middleweight Championship. Silva holds the longest title streak in UFC history , which ended in 2013 after 2,457 days , with 16 consecutive wins and 10 title defenses .. longest title streak. List of UFC champions#Longest individual reigns. He has 13 post-fight bonuses , the second most in UFC history .. UFC president Dana White and several mixed-martial-arts publications have called Silva the greatest mixed martial artist of all time .. mixed martial artist. mixed martial arts. Dana White. Dana White. He is currently ranked the # 6 contender in official UFC middleweight rankings .
related.