TASK DEFINITION: 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'.
PROBLEM: Sentence 1:Federal Cabinet Member Ernest Lapointe , the Quebec lieutenant of Prime Minister William Lyon Mackenzie King , promised that no one would face conscription if voters supported the Liberals . Sentence 2:nan

SOLUTION: SINGLE_APPOSITION

PROBLEM: Sentence 1:Here he had a dispute with a neighbour about water rights , which led to a lawsuit and a challenge , although the English Consul Kirkup succeeded in arranging the point of honour satisfactorily . Sentence 2:nan

SOLUTION: SINGLE_RELATIVE

PROBLEM: Sentence 1:Widespread industrial unrest in May allowed Metaxas to declare a state of emergency . Sentence 2:On 4 August , he suspended the parliament indefinitely and suspended various articles of the constitution , with the king 's approval .

SOLUTION:
PAIR_ANAPHORA