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:At the opening bell , Liston rushed at Clay , seemingly angry and looking for a quick knockout . Sentence 2:However , Clay 's superior speed and mobility enabled him to elude Liston , making the champion miss and look awkward .
answer:
PAIR_CONN_ANAPHORA


question:
Sentence 1:Michael W. Higgins , a former President of St. Thomas University , has researched Trudeau 's spirituality and finds that it incorporated elements of three Catholic traditions . Sentence 2:nan
answer:
SINGLE_APPOSITION


question:
Sentence 1:Although individuals are unable to communicate how they have acquired such knowledge of rules , studies show people generally have knowledge of a number of factors that imply sequence learning . Sentence 2:nan
answer:

SINGLE_CONN_START