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'.

Example Input: Sentence 1:One forms the center of the city ( poblacion ) whereas the other 14 are in the outlying areas . Sentence 2:nan
Example Output: SINGLE_CONN_INNER

Example Input: Sentence 1:Cassius Dio did not mention any action by the Romans there . Sentence 2:Therefore , we do not know how the Roman governor of this province dealt with this situation .
Example Output: PAIR_CONN_ANAPHORA

Example Input: Sentence 1:Tara then dressed up as a Pharaoh and commanded her fellow housemates to kneel , bark , and hug each other . Sentence 2:nan
Example Output:
SINGLE_VP_COORD