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:Going back to general quarters for the dawn alert at 0525 on the 29th , Bunch spotted planes at 0605 , but they remained out of range . Sentence 2:nan
[EX A]: SINGLE_CATAPHORA

[EX Q]: Sentence 1:One word of each pair is presented in a random order and the participant is asked to recall the item with which it was originally paired . Sentence 2:nan
[EX A]: SINGLE_S_COORD_ANAPHORA

[EX Q]: Sentence 1:The slide still blocked the original road as of early 2018 , although temporary bridges allow one - way traffic around the slide and into the park . Sentence 2:nan
[EX A]:
SINGLE_CONN_INNER