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 Input:
Sentence 1:Although cryoseisms release less energy than most tectonic events , they can still cause damage or significant changes to an affected area . Sentence 2:nan

Ex Output:
SINGLE_CONN_START


Ex Input:
Sentence 1:The first few years saw a strong Jewish community of some 300 persons resurfacing in the city . Sentence 2:However , due to migration , aging , assimilation and secularization , the community dwindled to some 70 members in 2006 .

Ex Output:
PAIR_CONN


Ex Input:
Sentence 1:Their verdict came a few days following their meeting with Amelia Earhart and they said that if she wished to , they would allow her to go . Sentence 2:nan

Ex Output:

SINGLE_S_COORD_ANAPHORA