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:Fearing that he would be executed upon arrival , a fear not at all far from reality , Jutzi tried to escape from the Swedish police when they stopped at the border to Norway in order too deport him in July 1941 . Sentence 2:nan
answer:
SINGLE_CATAPHORA


question:
Sentence 1:It is the most historic area of Derby , the location of a large fortified Roman settlement , which they called Derventio . Sentence 2:nan
answer:
SINGLE_APPOSITION


question:
Sentence 1:Bon 's knowledge of the guitar was limited , so Peter began teaching him how to bridge chords and construct a song . Sentence 2:nan
answer:

SINGLE_S_COORD_ANAPHORA