TASK DEFINITION: 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'.
PROBLEM: Sentence 1:Since the transition , it has been , however , extremely rare for a text to be written predominantly in classical Chinese , mainly because it lacks in words essential to describing modern life or expressing Western - originated concepts . Sentence 2:nan

SOLUTION: SINGLE_CONN_INNER_ANAPHORA

PROBLEM: Sentence 1:In February 2016 in response to a question about a reported 137 % budget overrun on public project which had been the subject of much public criticism she suggested that this was normal and it should not be a source for concern . Sentence 2:nan

SOLUTION: SINGLE_S_COORD_ANAPHORA

PROBLEM: Sentence 1:Although a respected banker , Chilberg had never really been one of the city 's elite . Sentence 2:nan

SOLUTION:
SINGLE_CONN_START