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:Friends and colleagues met Williams in Europe , with the last meetings occurring in the mid 1970s in Salzburg , Austria . Sentence 2:In 1972 , he accepted and then later declined a post at the Latter Day Saints Hospital in Salt Lake City Utah , United States .

Answer: PAIR_ANAPHORA


Question: Sentence 1:Although the Roman -- Parthian War ( 161 - 66 ) started auspiciously for the Parthians , after the Romans recovered from the first shock and setbacks , they counterattacked , restored Sohaemus to the Armenian throne and invaded the Parthian Empire . Sentence 2:nan

Answer: SINGLE_CONN_START


Question: Sentence 1:She calls out to Joe but he ignores her , heading towards the house . Sentence 2:nan

Answer:
SINGLE_S_COORD_ANAPHORA