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:She calls out to Joe but he ignores her , heading towards the house . Sentence 2:nan

SOLUTION: SINGLE_S_COORD_ANAPHORA

PROBLEM: Sentence 1:Ross was widely known as a lecturer and institute instructor . Sentence 2:He was president of Capitol College in Columbus which was renamed Dominion University when it relocated to Westerville Ohio .

SOLUTION: PAIR_ANAPHORA

PROBLEM: Sentence 1:Maurizio Mansi played in the Olympics in 1994 , and 1998 for team Italy . Sentence 2:Additionally he played in the World Championships ten times .

SOLUTION:
PAIR_CONN_ANAPHORA