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'.

[EX Q]: Sentence 1:This was at the time Germany 's highest placement at Eurovision . Sentence 2:The German jury awarded its highest mark of 4 to the United Kingdom .
[EX A]: PAIR_ANAPHORA

[EX Q]: Sentence 1:Species best able to adapt to the presence of humans have persisted , while those unable to adapt have generally fared poorly . Sentence 2:nan
[EX A]: SINGLE_CONN_INNER

[EX Q]: Sentence 1:The video was directed by Gustav Jonhson and was filmed in Sweden and shows the band 's members images inserted in scenes from past videos , so that they appear to be interacting with the teenagers they were before . Sentence 2:nan
[EX A]:
SINGLE_CONN_INNER_ANAPHORA