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 area under deep inundation is crucial for pastoralists , because only there Borgou . Sentence 2:nan

Ex Output:
SINGLE_CONN_INNER


Ex Input:
Sentence 1:She calls out to Joe but he ignores her , heading towards the house . Sentence 2:nan

Ex Output:
SINGLE_S_COORD_ANAPHORA


Ex Input:
Sentence 1:Retiring from the bank in 1799 , he moved north to the Windermere area after the death of his first wife . Sentence 2:nan

Ex Output:

SINGLE_CATAPHORA