The truth conditions of sentences with indexicals like ‘I’ and ‘here’ cannot be given directly, but only relative to a context of utterance. Something similar applies to questions: depending on the semantic framework, they are given truth conditions relative to an actual world, or support conditions instead of truth conditions. Two-dimensional semantics can capture the meaning of indexicals and shed light on notions like apriority, necessity and context-sensitivity. However, its scope is limited to statements, while indexicals also occur in questions. Moreover, notions like apriority, necessity and context-sensitivity can also apply to questions. To capture these facts, the frameworks that have been proposed to account for questions need refinement. Two-dimensionality can be incorporated in question semantics in several ways. This paper argues that the correct way is to introduce support conditions at the level of characters, and develops a two-dimensional variant of both proposition-set approaches and relational approaches to question semantics.

带有“我”和“这里”等索引词的句子的真值条件不能直接给出，而只能相对于话语上下文给出。类似的情况也适用于问题：根据语义框架，它们被赋予相对于现实世界的真值条件，或者支持条件而不是真值条件。二维语义可以捕捉索引的含义，并阐明先验性、必然性和上下文敏感性等概念。然而，它的范围仅限于陈述，而索引词也出现在疑问句中。此外，诸如优先性、必要性和上下文敏感性等概念也适用于问题。为了捕捉这些事实，为解决问题而提出的框架需要完善。二维性可以通过多种方式纳入问题语义中。本文认为正确的方法是在字符层面引入支持条件，并开发了命题集方法和关系方法的问题语义的二维变体。