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 1:16th - century , Persian historian , Firishta , recorded a tradition that Delhi or Dilli was founded by a Raja Dhilu before the Yavana ( Greek ) invasions . Sentence 2:However , it should be noted that the kings then referred to the initial Muslim invaders as Yavanas .

Output: PAIR_CONN_ANAPHORA


Input: Consider Input: Sentence 1:She once ran for the presidency of the conference but was defeated by another woman . Sentence 2:nan

Output: SINGLE_VP_COORD


Input: Consider Input: Sentence 1:In 2008 , Midway Los Angeles was relocated and merged with Midway 's San Diego office . Sentence 2:nan


Output: SINGLE_VP_COORD