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'.

Q: Sentence 1:Arriving at New York City in December 1988 , he began coaching youth soccer teams : the Elmont Ravens girls ' team , the Brooklyn Patriots boys ' team , and the Gotham Girls Chargers team . Sentence 2:nan

A: SINGLE_CATAPHORA
****
Q: Sentence 1:At the conclusion of the survey , researchers found that out of 2552 ex-NFL players , 9.1 % self reported using anabolic steroids during their career . Sentence 2:Furthermore , 16.3 % of Offensive lineman and 14.8 % of defensive lineman surveyed reported using steroids during their careers .

A: PAIR_CONN_ANAPHORA
****
Q: Sentence 1:Although not in favor of protectionism , he has said that if the United States and other European Union countries begin introducing protectionist measures Sweden may be forced to do so too , in a variant of the prisoner 's dilemma . Sentence 2:nan

A:
SINGLE_CONN_START
****