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 Input:
Sentence 1:Bishop Henry was the younger brother of King Stephen and his structure dominates the town to this day . Sentence 2:By 1240 in excess of 100 nuns were living in the community .

Ex Output:
PAIR_NONE


Ex Input:
Sentence 1:The limestone contains marine fossils including crinoids , brachiopods , gastropods , horn corals , and bryozoans . Sentence 2:However , most of the fossils are too small for the human eye to detect .

Ex Output:
PAIR_CONN


Ex 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 .

Ex Output:

PAIR_CONN