With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Paramore's co-founders left the band in March 2010.
text_B: The MP 59 is a rubber tired variant of electric multiple units used on Paris 's Metro system , and is the oldest type still in regular passenger service .. rubber. rubber. rubber tired. Rubber-tyred metro. Paris. Paris. Metro. Paris Metro. Manufactured by a consortium between CIMT-Lorraine -LRB- body -RRB- , Jeumont-Schneider -LRB- control circuits -RRB- , Alsthom and CEM -LRB- motors -RRB- , they were first introduced in 1963 when the busiest routes of Lines 1 and 4 were converted to rubber tired pneumatic operation .. CIMT-Lorraine. CIMT-Lorraine. CEM. Compagnie Electro-Mecanique. Jeumont-Schneider. Jeumont-Schneider. rubber. rubber. rubber tired. Rubber-tyred metro. Alsthom. Alsthom. Lines 1. Paris Metro Line 1. Paris Metro Line 4. The trains circulated on Line 1 between 1963 and 2000 , and Line 4 between 1967 and 2012 .. Paris Metro Line 4. Today , 24 trains -LRB- originally from Line 1 -RRB- operate on Line 11 .
not_related.