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:Including the previous incarnations as the Home Nations and Five Nations , this was the seventy - sixth series of the northern hemisphere rugby union championship . Sentence 2:nan
[EX A]: SINGLE_CATAPHORA

[EX Q]: Sentence 1:Maurizio Mansi played in the Olympics in 1994 , and 1998 for team Italy . Sentence 2:Additionally he played in the World Championships ten times .
[EX A]: PAIR_CONN_ANAPHORA

[EX Q]: Sentence 1:Martini ; B. Metzger ; A. Wikgren ( 1993 ) . Sentence 2:The Greek New Testament ( 4 ed . ) .
[EX A]:
PAIR_NONE