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:Her sire Whiskey was a successful racehorse before breaking down in a race at Lewes . Sentence 2:At stud he sired 148 winners including The Derby winner Eleanor and the dams of the Derby winners Phantom and Priam .
Example Output: PAIR_NONE

Example Input: Sentence 1:Consejo Mundial de Lucha Libre ( in Spanish ) . Sentence 2:Archived from the original on August 2 , 2014 .
Example Output: PAIR_NONE

Example Input: Sentence 1:Cassius Dio did not mention any action by the Romans there . Sentence 2:Therefore , we do not know how the Roman governor of this province dealt with this situation .
Example Output:
PAIR_CONN_ANAPHORA