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'.

Example Input: Sentence 1:Little is known about his life , but according to tradition he was a companion of Saint Oswald at Iona . Sentence 2:nan
Example Output: SINGLE_S_COORD

Example Input: Sentence 1:Due to economic disparities in the black LGBT community , 32 % of children raised by gay black men are in poverty . Sentence 2:However , only 13 % of children raised by heterosexual black parents are in poverty and only 7 % for white heterosexual parents .
Example Output: PAIR_CONN

Example Input: Sentence 1:Weisbrot attributed these successes in part to policy changes that were an improvement over the neoliberal program Brazil adopted in the 1980s . Sentence 2:However , he was critical of austerity and high interest rates after 2010 , arguing that these were unnecessary and led to a prolonged recession .
Example Output:
PAIR_CONN_ANAPHORA