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'.

Input: Consider Input: Sentence 1:The government of India is yet to approve the project , although DRDO has completed all calculations and started the engineering work . Sentence 2:nan

Output: SINGLE_CONN_INNER


Input: Consider Input: Sentence 1:In 1957 he even advocated in talks with Israeli officials that Arab Christians in Israel be drafted for military service . Sentence 2:However , his suggestions were unpopular with both the Israeli government and Israeli Arab political leaders .

Output: PAIR_CONN_ANAPHORA


Input: Consider Input: Sentence 1:Ehrlich bet that the prices for five metals would increase over a decade , while Simon took the opposite stance . Sentence 2:nan


Output: SINGLE_CONN_INNER