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:It is also based on he American version of the series , In Treatment . Sentence 2:It debuted on 1 October 2012 at GNT , at 10 pm and ended on 30 November , with a total of 45 episodes .

Output: PAIR_NONE

Input: Consider Input: Sentence 1:He applied himself to parish work and had the church restored and the vicarage rebuilt . Sentence 2:nan

Output: SINGLE_S_COORD

Input: Consider Input: Sentence 1:GM executives decided that engineering effort would best be spent on aerodynamics and chassis development . Sentence 2:They created a modern platform , so that when engine technology advanced , they would have a well - balanced package with acceleration , braking , handling , and aerodynamics .
Output: PAIR_ANAPHORA