With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jousting was transformed into a specialized pig during the Late Middle Ages.
text_B: Pablo Cuevas and Brian Dabul were the defending champions .. Pablo Cuevas. Pablo Cuevas. Brian Dabul. Brian Dabul. Both are present , but chose not compete together this year .. Cuevas partnered up with Marcel Granollers , but they lost in the first round 2 -- 6 , 2 -- 6 , against Potito Starace and Horacio Zeballos .. Potito Starace. Potito Starace. Horacio Zeballos. Horacio Zeballos. Marcel Granollers. Marcel Granollers. Dabul partnered up with Paolo Lorenzi , but they lost in the first round 1 -- 6 , 4 -- 6 , against Santiago Gonzalez and Nicolas Massu .. Paolo Lorenzi. Paolo Lorenzi. Santiago Gonzalez. Santiago Gonzalez ( tennis ). Nicolas Massu. Nicolas Massu. The champions of this edition were Łukasz Kubot and Oliver Marach , who defeated in the final Potito Starace and Horacio Zeballos 6 -- 4 , 6 -- 0 .. Łukasz Kubot. Łukasz Kubot. Oliver Marach. Oliver Marach. Potito Starace. Potito Starace. Horacio Zeballos. Horacio Zeballos
not_related.