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 Iotapa was annexed along with the Kingdom of Commagene by Roman Emperor Vespasian in 72 , Iotapa became a central city where coins were minted . Sentence 2:nan
[EX A]: SINGLE_CONN_START

[EX Q]: Sentence 1:Russians were strongly tied to tradition and feared they would lose their long cherished personal connection to the Tsar . Sentence 2:While the Tsar remained ever pure in the eyes of the people , popular opinion held that his advisors exercised an evil influence over him .
[EX A]: PAIR_NONE

[EX Q]: Sentence 1:Cool Springs Farm was a property in Franklin , Tennessee that was listed on the National Register of Historic Places in 1983 but was removed from the register in 1993 . Sentence 2:The property was also known as Mallory Valley Farm .
[EX A]:
PAIR_NONE