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:Garza was driving in his car when he was chased and attacked by armed men in two other cars . Sentence 2:Garza attempted to escape but he was shot at 15 times in the city center at a garage owned by a relative .

Ex Output:
PAIR_ANAPHORA


Ex Input:
Sentence 1:Ghinzani , who was also very lucky not to hit Martini , limped away from his broken Osella and Grand Prix racing having banged his ankle on the cars monocoque . Sentence 2:nan

Ex Output:
SINGLE_RELATIVE


Ex Input:
Sentence 1:APL - 61 , a non self - propelled barracks ship and lead ship of her class , moored alongside the United States Naval Academy . Sentence 2:nan

Ex Output:

SINGLE_APPOSITION