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:It has become an ongoing tradition that the Pelican editor appears naked on the front cover of the final edition , although it is unknown when this tradition began . Sentence 2:nan
[EX A]: SINGLE_CONN_INNER

[EX Q]: Sentence 1:On 2012 , Ex Battalion was firstly formed and founded by Bosx1ne and rap battle emcees Jekkpot and Cent as a rap battle group , they had joined several barangay rap battles before being into music . Sentence 2:nan
[EX A]: SINGLE_VP_COORD

[EX Q]: Sentence 1:Since the year 2000 , he has officiated in the annual series of national six - a-side tournaments called Masters Football , referees for which are FA endorsed . Sentence 2:nan
[EX A]:
SINGLE_CONN_START