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: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
answer:
SINGLE_CATAPHORA


question:
Sentence 1:She told Ben Lee of Digital Spy that an actor had been cast , although she refused to reveal his identity . Sentence 2:nan
answer:
SINGLE_CONN_INNER


question:
Sentence 1:Since the annual game was renewed in 1995 , it has been played only once at Colorado State , in 1996 at the Rams ' former home of Hughes Stadium . Sentence 2:nan
answer:

SINGLE_CONN_START