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'.

[EX Q]: Sentence 1:Although the Roman -- Parthian War ( 161 - 66 ) started auspiciously for the Parthians , after the Romans recovered from the first shock and setbacks , they counterattacked , restored Sohaemus to the Armenian throne and invaded the Parthian Empire . Sentence 2:nan
[EX A]: SINGLE_CONN_START

[EX Q]: Sentence 1:Bode and Chub steal a motorboat and plan to make a refuge on Pearl Key , a small island in Florida Bay . Sentence 2:However , because of their inept navigational skills , Tom and JoLayne easily follow them in a boat of their own .
[EX A]: PAIR_CONN

[EX Q]: Sentence 1:He is a recipient of a Bay Area Critics Circle award and is a writer in residence with the LA Writer 's Center . Sentence 2:nan
[EX A]:
SINGLE_S_COORD