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'.

[Q]: Sentence 1:Note : this file will not be deleted for this reason , unless it is explicitly nominated for deletion . Sentence 2:nan
[A]: SINGLE_CONN_INNER_ANAPHORA


[Q]: Sentence 1:However , KARI experienced more difficulties than expected in SLV development , because it required much stronger propellant power than KSR - III possessed to launch a satellite into orbit . Sentence 2:nan
[A]: SINGLE_CONN_INNER_ANAPHORA


[Q]: Sentence 1:Properly - trained staff officers became increasingly scarce , and in some cases newly qualified staff officers lacked the dedication or moral courage of their predecessors . Sentence 2:nan
[A]:
SINGLE_S_COORD