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:The limestone contains marine fossils including crinoids , brachiopods , gastropods , horn corals , and bryozoans . Sentence 2:However , most of the fossils are too small for the human eye to detect .

SOLUTION: PAIR_CONN

PROBLEM: Sentence 1:Following this , his executioner services were in great demand throughout England . Sentence 2:Nevertheless , some considered Calcraft incompetent , in particular for his controversial use of the short - drop hanging method in which the condemned were slowly strangled to death .

SOLUTION: PAIR_CONN

PROBLEM: Sentence 1:In July , magistrates in Naples placed Lino Jannuzzi , a 76 - year - old journalist and senator , under house arrest , although they allowed him the possibility of attending the work of the parliament during daytime . Sentence 2:nan

SOLUTION:
SINGLE_CONN_INNER_ANAPHORA