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:His granddaughter Esther Chemutai is also a runner , while he is a distant uncle to the siblings Linet Masai and Moses Masai . Sentence 2:nan
Example Output: SINGLE_CONN_INNER

Example Input: Sentence 1:Following this , his executioner services were in great demand throughout England . Sentence 2:Nevertheless , some considered Calcraft incompetent , in particular for his controversial use of the short - drop hanging method in which the condemned were slowly strangled to death .
Example Output: PAIR_CONN

Example Input: Sentence 1:Note : this file will not be deleted for this reason , unless it is explicitly nominated for deletion . Sentence 2:nan
Example Output:
SINGLE_CONN_INNER_ANAPHORA