TASK DEFINITION: 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'.
PROBLEM: Sentence 1:A special cloud falls out of the sky and lands on Tinky Winky 's head . Sentence 2:Tinky Winky shows his special cloud to the others and they all think it is beautiful .

SOLUTION: PAIR_ANAPHORA

PROBLEM: Sentence 1:Care needs to be taken because the semantics are different when operands make use of more than one bit to represent a value . Sentence 2:nan

SOLUTION: SINGLE_CONN_INNER

PROBLEM: Sentence 1:Doctor Sun was born in Peking , People 's Republic of China , and was working as a scientist during the Cultural Revolution . Sentence 2:nan

SOLUTION:
SINGLE_APPOSITION