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:In the centre of the flag is the ( small ) coat of arms of the Kingdom , which originates from the arms of the House of Nassau , surmounted by a royal crown and surrounded by the insignia of the Grand Cross of the Military William Order . Sentence 2:nan

A: SINGLE_RELATIVE
****
Q: Sentence 1:Wayne Barrett ( July 11 , 1945 -- January 19 , 2017 ) was an American journalist . Sentence 2:He was an investigative reporter and senior editor for The Village Voice for 37 years .

A: PAIR_ANAPHORA
****
Q: Sentence 1:Upper and rear parts were fabric covered . Sentence 2:Stability on the water was provided by a pair of unstepped floats under the wing , held a little beyond the central section on mountings within completely enclosing fairings .

A:
PAIR_NONE
****