In this task, you are given two sentences in the English language and your task is to classify them into one of their discourse types. A discourse type is an indicator to classify the given two sentences on the basis of a co-text as well as a relevant context. There are 13 discourse types in total which are 'SINGLE_S_COORD', 'SINGLE_CATAPHORA', 'SINGLE_CONN_INNER', 'SINGLE_APPOSITION', 'SINGLE_VP_COORD', 'SINGLE_CONN_START', 'PAIR_ANAPHORA', 'PAIR_CONN', 'SINGLE_RELATIVE', 'SINGLE_CONN_INNER_ANAPHORA', 'SINGLE_S_COORD_ANAPHORA', 'PAIR_CONN_ANAPHORA' and 'PAIR_NONE'.

[EX Q]: Sentence 1:Facing charges that would have all but assured he would die in prison , he began making escape plans . Sentence 2:nan
[EX A]: SINGLE_CATAPHORA

[EX Q]: Sentence 1:The Tweedmouth junction faced south , so that Berwick to Kelso trains had to reverse there . Sentence 2:nan
[EX A]: SINGLE_CONN_INNER

[EX Q]: Sentence 1:Yet his training was breached by another illness , hepatitis . Sentence 2:However , this did n't stop him ; a year later he was training again and taking the advance course in swimming , the competitive course , at age nine .
[EX A]:
PAIR_CONN