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'.

Q: Sentence 1:Marco Cecchinato was the defending champion but chose not to participate . Sentence 2:nan

A: SINGLE_VP_COORD
****
Q: Sentence 1:Paul Carr responded on PandoDaily , and Secret 's PR representative expressed disappointment saying she did n't like it when people wrote bad things about others without talking to them first . Sentence 2:nan

A: SINGLE_S_COORD
****
Q: Sentence 1:As a result , the Jerome Street designation was chosen , and it remains in place today , although it is sometimes referred to as the Lysle Boulevard Bridge . Sentence 2:nan

A:
SINGLE_CONN_INNER_ANAPHORA
****