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:Artists ' impression of Giotto , the European Space Agency 's first interplanetary mission , launched in July 1985 . Sentence 2:nan

A: SINGLE_APPOSITION
****
Q: Sentence 1:Moderate Party Chairman Ken Block , who received 6.5 % of the vote in the 2010 gubernatorial election , had filed to run again for the Moderate Party . Sentence 2:nan

A: SINGLE_RELATIVE
****
Q: Sentence 1:Jump up ^ DP03 : Selected Economic Characteristics from the 2006 - 2010 American Community Survey 5 - Year Estimates for Pemberton borough , Burlington County , New Jersey , United States Census Bureau . Sentence 2:Accessed June 21 , 2012 .

A:
PAIR_NONE
****