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:Fallen Empires was the last set produced only in English although the two previous sets . Sentence 2:nan

SOLUTION: SINGLE_CONN_INNER

PROBLEM: Sentence 1:The mall management talked with JC Penney to replace Hutzler 's . Sentence 2:However , JC Penney eventually chose Marley Station instead and opened a location there in 1994 .

SOLUTION: PAIR_CONN

PROBLEM: Sentence 1:Finding out about the body in the lake , she convinces Blake to take her to the morgue to see the corpse . Sentence 2:nan

SOLUTION:
SINGLE_CATAPHORA