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'.

Sentence 1:^ Jump up to : A second agreement , which replaced the first , was signed with Iceland and Norway following the incorporation of the Schengen Agreement into EU law with the Treaty of Amsterdam of 1997 . Sentence 2:nan
SINGLE_RELATIVE

Sentence 1:Although the principal focus was straight plays , he revived the melodrama -- a play with incidental music . Sentence 2:nan
SINGLE_CONN_START

Sentence 1:Adults are found from April to December , but they are rare near the end of the year . Sentence 2:nan

SINGLE_S_COORD_ANAPHORA