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:Prior to the new album 's release , band members said the album 's name would be called ' Jacket on the Rack ' . Sentence 2:However , it was changed to Volume 4 : Songs in the Key of Love & Hate .

SOLUTION: PAIR_CONN

PROBLEM: Sentence 1:After the conclusion of this most unfortunate episode in Delhi 's history , Nader 's officials began collecting taxes and some were also sent out to Delhi 's environs to do the same . Sentence 2:nan

SOLUTION: SINGLE_S_COORD

PROBLEM: Sentence 1:On January 31 , the next day , Henyard 's aunt , Linda Miller , agreed to drive him to Smalls ' residence so that Henyard could speak with Smalls . Sentence 2:nan

SOLUTION:
SINGLE_CONN_INNER