They do not define what their written or verbal agreements are, it is as simple as that. That statement would mean its possible they asked 35 years ago got a sh

They do not define what their written or verbal agreements are, it is as simple as that. That statement would mean its possible they asked 35 years ago got a shrug and some guy saying "sure" OR it could maximally be a full contract with permanent transfer of the right of painting the wall. If this organization uses a vague statement, then its fair to take the vagueness is the worst possible way for them.