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'.

Input: Consider Input: Sentence 1:Lovegrass is the fifth studio album by Australian country music singer Sara Storer . Sentence 2:It was released in August 2013 and peaked at number 25 on the ARIA Charts .

Output: PAIR_ANAPHORA


Input: Consider Input: Sentence 1:Witnesses later said they had seen police batoning a figure in the doorway where McCloskey was found , although police claimed that he had been unconscious before the baton charge and may have been hit with a stone . Sentence 2:nan

Output: SINGLE_CONN_INNER


Input: Consider Input: Sentence 1:Although the house remained Samuel 's home until his death in 1893 , it was also a dormitory for students attending a school across the road during most of the 1870s . Sentence 2:nan


Output: SINGLE_CONN_START