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 Tweedmouth junction faced south , so that Berwick to Kelso trains had to reverse there . Sentence 2:nan

Output: SINGLE_CONN_INNER


Input: Consider Input: Sentence 1:In response , Mulock organized a group of prominent businessmen from the Newmarket area to travel to Ottawa to meet with Laurier . Sentence 2:They arrived on 21 February 1905 and found the Prime Minister more than interested in the project , and he noted :

Output: PAIR_ANAPHORA


Input: Consider Input: Sentence 1:Each kohen 's tallit is draped over his head and hands so that the congregation can not see his hands while the blessing is said . Sentence 2:nan


Output: SINGLE_CONN_INNER