Identifying Relationships Between Entities in Text for Complex Interactive Question Answering Task

In this paper we describe our participation in the Complex Interactive Question Answering (ciQA) task of the QA track. We investigated the use of lexical cohesive ties (called lexical bonds) between sentences containing different question entities in finding information about relationships between these entities. We also investigated the role of clarification forms in assisting the system in finding answers to complex questions. The rest of the paper is organised as follows: in section 2 we present our approach to calculating lexical bonds between sentences containing different entities, section 3 contains the detailed description of our systems, in section 4 we present the results, and section 5 contains discussions.