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'.

Example Input: Sentence 1:Although her age is the most young , she has an excellent ability as a voice actress . Sentence 2:nan
Example Output: SINGLE_CONN_START

Example Input: Sentence 1:Although he studied painting and drawing in the 1970s and 1980s , he is a self - taught sculptor who began showing his work regularly in 2000 . Sentence 2:nan
Example Output: SINGLE_CONN_START

Example Input: Sentence 1:He was the head chorister at the school and topped the London Trinity musical theatre exams , scoring a high distinction in 2008 . Sentence 2:He was a track athlete until he was injured , leading to a stronger focus on the performing arts .
Example Output:
PAIR_ANAPHORA