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:The format has grown to many other cities , including New York , Los Angeles , Denver , Miami , and Albuquerque , NM . Sentence 2:But more Recently , the format has been replaced in several cities .

Ex Output:
PAIR_CONN


Ex Input:
Sentence 1:The Austrian commander gamely threw four squadrons of hussars at Jacquinot 's advance guard . Sentence 2:Eventually , Jacquinot got his entire brigade into action and pressed the Austrian hussars back on the supporting battalion and one - third of Grenz infantry south of Rohr .

Ex Output:
PAIR_CONN_ANAPHORA


Ex Input:
Sentence 1:They damaged a six - inch magazine and the forward stokehold ( boiler room ) and started a fire which was put out after about fifteen minutes . Sentence 2:However , the forward left six - inch magazine was flooded as a precaution .

Ex Output:

PAIR_CONN