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'.

Q: 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

A: SINGLE_APPOSITION
****
Q: Sentence 1:Although he studied painting and drawing in the 1970s and 1980s , he is a self - taught sculptor who began showing his work regularly in 2000 . Sentence 2:nan

A: SINGLE_CONN_START
****
Q: Sentence 1:On July 16 , 1925 , Mehaffey was appointed assistant to the executive officer of the Arlington Memorial Bridge Commission , an independent agency of the U.S. federal government established by Congress . Sentence 2:In that capacity , he helped oversee the design and early construction of the bridge .

A:
PAIR_ANAPHORA
****