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 municipal elections are local only , and local results vary , they do function as a measure of the sentiments and party strengths also nationally . Sentence 2:nan

Ex Output:
SINGLE_CONN_START


Ex Input:
Sentence 1:He also has a bitter history with Rick considering that he left him to hold an unknown merchandise in Marrakesh that lead to him being shot in his rear end , while Rick enjoyed the company of the local ladies . Sentence 2:nan

Ex Output:
SINGLE_CONN_INNER


Ex Input:
Sentence 1:Mallory and Bullock suggested names for the many topographical features they discovered and these were endorsed by the expedition and passed to Charles Bell , Britain 's special ambassador to Lhasa , for approval . Sentence 2:nan

Ex Output:

SINGLE_APPOSITION