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:In 1991 , an English man was prosecuted for allegedly having sexual contact with a dolphin . Sentence 2:The man was found not guilty after it was revealed at trial that the dolphin was known to tow bathers through the water by hooking his penis around them .
[EX A]: PAIR_ANAPHORA

[EX Q]: Sentence 1:The Tweedmouth junction faced south , so that Berwick to Kelso trains had to reverse there . Sentence 2:nan
[EX A]: SINGLE_CONN_INNER

[EX Q]: Sentence 1:Dentsu has 30,000,000 yen invested for a 6.5 % stake . Sentence 2:However , its capital on launch was noted to be 229,750,000 yen .
[EX A]:
PAIR_CONN_ANAPHORA