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:Although Harvester was the nation 's fourth - largest company at the time he assumed control , McCardell triggered a strike by unionized employees which ended disastrously for the company and led to its eventual demise . Sentence 2:nan
answer:
SINGLE_CONN_START


question:
Sentence 1:Crowfoot , a Conservative stronghold located in southern Alberta , which has been called the safest seat in the entire country . Sentence 2:nan
answer:
SINGLE_APPOSITION


question:
Sentence 1:In most cases , career foreign service officers serve a tour of approximately three years per ambassadorship whereas political appointees customarily tender their resignations upon the inauguration of a new president . Sentence 2:nan
answer:

SINGLE_CONN_INNER