The Information Structure of Contrastiveness

Contrastive focus and contrastive topic share the characteristic of being associated with the particle ‘-은/는’ in Korean. While contrastive focus can refer to elements marked by case particles such as ‘-이/가,’ it is also defined in some cases as focus marked by the particle ‘-은/는.’ Although ‘-은/는’ is sometimes viewed as indicating topics rather than focus, in contexts where it introduces new information, it can function as contrastive focus. Unlike case particles such as ‘-이/가,’ which do not necessarily imply a consideration of alternative items within a paradigmatic relationship, the particle ‘-은/는’ as contrastive focus operates within a series of comparable or contrasting elements, due to its role as an auxiliary particle. Therefore, the distinction between these two types of focus cannot be fully explained through notions such as exhaustivity or prominence; rather, it should be understood based on the inherent properties of these particles. Similarly, contrastive topics can be consistently understood within the same framework as contrastive focus, given the particle ‘-은/는’ shares these functions. Both contrastive topics and contrastive focus can co-occur, as seen in responses such as ‘철수는 왔어요(Cheolsu has come),’ in response to the question, ‘누가 왔니(Who came)?’ Here, ‘Cheolsu’ is interpreted as a topic, while simultaneously functioning as new information, thus embodying both the characteristics of a topic and a focus.