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 Ranganatha follows the theme of the Valmiki Ramayana , he still made changes in some incidents which effects the course of events . Sentence 2:nan

Ex Output:
SINGLE_CONN_START


Ex Input:
Sentence 1:Working at the ' home front ' during The Blitz , she spent many nights moving very ill children and babies from their beds to safer underground shelters . Sentence 2:nan

Ex Output:
SINGLE_CATAPHORA


Ex Input:
Sentence 1:Lulu notices this , so she plans to get to Mamoru after he leaves the planetarium , but Amu sees her . Sentence 2:nan

Ex Output:

SINGLE_S_COORD