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: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


[Q]: Sentence 1:The Derby Trailblazers are a basketball club from Derby , which operates several men 's teams in the English Basketball League , and women 's and junior teams at a variety of levels . Sentence 2:nan
[A]: SINGLE_RELATIVE


[Q]: Sentence 1:16th - century , Persian historian , Firishta , recorded a tradition that Delhi or Dilli was founded by a Raja Dhilu before the Yavana ( Greek ) invasions . Sentence 2:However , it should be noted that the kings then referred to the initial Muslim invaders as Yavanas .
[A]:
PAIR_CONN_ANAPHORA