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:As a major he held a number of posts , the most notable being the brigade major of an infantry brigade , even though he was a part of the artillery corps . Sentence 2:nan
[EX A]: SINGLE_APPOSITION

[EX Q]: Sentence 1:As a result , Ibrahim Khan invited Mr. Charnock back to Bengal ; but Mr. Charnock refused to come back until a specific Firman with terms and conditions clearly specified was issued by the Emperor so that they would not be subjected to further humiliations . Sentence 2:nan
[EX A]: SINGLE_CONN_INNER_ANAPHORA

[EX Q]: Sentence 1:Finding that Julia and Monica have run off , Sam goes after them , eventually coming to a darkened building . Sentence 2:nan
[EX A]:
SINGLE_CATAPHORA