I have been trying to better understand the usage of prepositions lately. Today I want to explain a relative complex idea to a native speaker. I want to sound natural but I am not sure how to connect three nouns correctly with prepositions.
I have three nouns here, the role, the client, and the service. All I am trying to say is that "the role of a client for a service" is defined as the "partnerlink", but I am not sure if I should say "for a service" or "for the service" or "to a service" or even "of a service".
I believe I should use role of a client where role is a property of the client. The role is something belongs to the client. But I am not sure which preposition to use between the client and the service. To or of or for?