The “Collective” organization concluded an agreement with citizen Sidorova, according to which she provided part of her apartment building as a store for a fee. At the same time, it was stipulated in the contract that Sidorova was obliged to clean the premises allocated for the store, for which the Collective organization would pay her 1000 rubles a month. A year later, Sidorova demanded payment of compensation for unused vacation, or to give her leave.
In what legal relations was Sidorova with the organization "Collective"? Are Sidorova's requirements legal?

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