With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Production for the Christmas special started after 10 June .
text_B: Production for the 2017 Christmas special started on 12 June 2017 , and concluded on 11 July 2017.Filming for the spin-off series Class ran from April to September 2016 , beginning before the filming for the tenth series of Doctor Who started .
SUPPORTS.