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'.

Input: Consider Input: Sentence 1:Inveneo , the company that NetHope tapped to build the network , defended the action by saying that in the days after the earthquake it was critical for NGOs to have reliable connectivity in order to coordinate their actions using resources such as Google Maps . Sentence 2:nan

Output: SINGLE_APPOSITION


Input: Consider Input: Sentence 1:As the Delaware companies do not have to reveal their owners the exact ownership of the club is therefore unknown but Steve Parish confirmed that each of Harris and Blitzer had an 18 % share to match his own . Sentence 2:nan

Output: SINGLE_S_COORD


Input: Consider Input: Sentence 1:They work in groups consisting of on average 2 - 4 people , sharing work equally . Sentence 2:They use resources such as internet , PowerPoint presentations and videos to learn , instead of a teacher standing up in front of the room doing a lecture every day .


Output: PAIR_NONE