instruction:
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'.
question:
Sentence 1:Beginning on January 30 , 1951 , Dodd led his platoon against Hill 256 , a strongly defended position near Subuk , Korea , as part of Operation Thunderbolt . Sentence 2:nan
answer:
SINGLE_CATAPHORA


question:
Sentence 1:Speculation is that it was never finished because Warrior had already left WWF or because Hasbro was unable to perfect the chest beating action . Sentence 2:nan
answer:
SINGLE_CONN_INNER


question:
Sentence 1:O'Donnell was the starter for the first six games of the season , but they went 0 -- 6 under him . Sentence 2:nan
answer:

SINGLE_S_COORD_ANAPHORA