With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Bolshov 's cooling plate went unfielded during the Chernobyl disaster .
text_B: Bolshov 's graphite-concrete `` sandwich , '' would be similar in concept to later `` core-catchers '' , which are now part of many nuclear reactor designs.-  However it would similarly go unfielded , as upon reports by the investigative team , the corium had stopped , with the precautionary underground channel , then simply filled with concrete to strengthen the foundation below the reactor .
NOT ENOUGH INFO.