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 year was marked by halfhearted attempts of the U.S. Army to respond to Kennedy 's emphasis on developing a greater capability in counterinsurgency , although the U.S. Military Assistance Advisory Group began providing counterinsurgency training to the South Vietnamese army . Sentence 2:nan

Ex Output:
SINGLE_CONN_INNER


Ex Input:
Sentence 1:She told Ben Lee of Digital Spy that an actor had been cast , although she refused to reveal his identity . Sentence 2:nan

Ex Output:

SINGLE_CONN_INNER