instruction:
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'.
question:
Sentence 1:The Confederate force , which actually numbered about 4,000 men , was led by Col. Lawrence O'Bryan Branch . Sentence 2:nan
answer:
SINGLE_RELATIVE


question:
Sentence 1:Seeking the power of the Flash so that he can restore history according to his own vision rather than another , Sinestro cuts off Abin 's hand , severing his connection with his ring . Sentence 2:nan
answer:
SINGLE_CATAPHORA


question:
Sentence 1:The son of Declan Queally , who trains a small string of Thoroughbreds in County Waterford , Queally was raised in Modeligo and attended to Dungarvan Christian Brothers School . Sentence 2:nan
answer:

SINGLE_RELATIVE