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:Ojiugo is Idu 's childhood friend . Sentence 2:However , after six years and no children , Ojiugo leaves Amarajeme to live with her husband 's friend in order to fulfill her dream of motherhood .

Output: PAIR_CONN


Input: Consider Input: Sentence 1:Alain makes Makoto doubt that his sister is truly back to normal , leading Takeru to try to convince him otherwise . Sentence 2:However , Javel 's return complicates matters as he focuses his attacks on Makoto .

Output: PAIR_CONN_ANAPHORA


Input: Consider Input: Sentence 1:In November 2006 , he set a league record score of 263 , against Chittagong Division for Bangladeshi first - class cricket -- although this record has since been bettered by Raqibul Hasan . Sentence 2:nan


Output: SINGLE_CONN_INNER