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:A few years later another merger was attempted as the Country - National Organisation but this failed within a few years . Sentence 2:nan
answer:
SINGLE_S_COORD


question:
Sentence 1:During the last 10 years notable progress has been made in the Southern States in meeting that equality requirement . Sentence 2:But that progress will be nullified by a program of rapid , enforced desegregation .
answer:
PAIR_CONN


question:
Sentence 1:Jackie returned to find the Franchetti mob taken over by Frankie 's cousin , Paulie . Sentence 2:Paulie was able to discover Jackie 's secret , and Paulie blackmailed Jackie into doing hits for him .
answer:

PAIR_ANAPHORA