instruction:
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'.
question:
Sentence 1:There is also evidence which suggests the function of dystroglycan as a part of the signal transduction pathway because it is shown that Grb2 , a mediator of the Ras - related signal pathway , can interact with the cytoplasmic domain of dystroglycan . Sentence 2:nan
answer:
SINGLE_APPOSITION


question:
Sentence 1:The entire library occupies 24 KB of the cartridge ( in three banks , 8 KB each ) and can be switched off as necessary to release some memory . Sentence 2:nan
answer:
SINGLE_VP_COORD


question:
Sentence 1:She is put behind bars but she escapes with Robin 's help and they get married . Sentence 2:But she leaves him too and regroups with her old gang members and goes in search of their next victim .
answer:

PAIR_CONN_ANAPHORA