Property relativizing determiner / unary quantifier constructor. {kai'i} introduces a predicate whose first argument slot becomes filled by the property made by taking the bridi in which this {kai'i} appears and putting {ce'u} into the argument slot in which this {kai'i} argument was located. Put formally, "kai'i brodi cu brodu" = "lo ka ce'u brodu cu brodi". Additionally, a {kai'i} term has a rightward logical scope, like quantifiers and adverbials.
Define x1 to be a named dummy symbol (having a name heretofore unassigned) such that, if it were to exist, it would satisfy condition/have property x2 (condition/ka); let x1 be such that it satisfies/is described by x2.