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'.
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Question: Sentence 1:The role played by Murali was initially intended to be played by Karthik . Sentence 2:Similarly Laila replaced Sneha in the lead female role .

Answer: PAIR_NONE


Question: Sentence 1:There is no known information on Barbapiccola 's formal education . Sentence 2:However , it is suggested that much of her knowledge accumulated by means of conversations in Neapolitan salons .

Answer: PAIR_CONN_ANAPHORA


Question: Sentence 1:However the title then dies with them and is not used by subsequent heirs or claimants unless the crown is restored constitutionally . Sentence 2:nan

Answer:
SINGLE_CONN_INNER