Ratkaisunsa
Ratkaisunsa is a Finnish noun form meaning “his/her/its solution” or, more broadly, “the solution belonging to someone,” depending on context. It is formed from the noun ratkaisu (solution) together with the third-person possessive suffix -nsä, which signals ownership by a subject already identified in the discourse. The word behaves like other possessive constructions in Finnish: the possessor is not stated as a separate word here, but is understood from the surrounding text.
In use, ratkaisunsa functions as a noun phrase referring to a solution associated with a specific person
Notes on nuance and scope: ratkaisunsa emphasizes the attribution of a solution to a particular agent, rather