Volunteers who participate in natural disaster response receive intangible benefits for their work.
All volunteers receive intangible benefits for their work. Volunteers work regularly or on an as-needed basis. Some volunteers are trained. Volunteers work in groups or individually. Environmental volunteers contribute toward environmental management or conservation. Participating in natural disaster response is an example of volunteers working in groups on an as-needed basis.
∀x (Volunteer(x) → GetIntangibleBenefits(x)) ∀x (Volunteer(x) → WorkRegularly(x) ∨ WorkAsNeeded(x)) ∃x (Volunteer(x) → Trained(x)) ∀x (Volunteer(x) → (WorkInGroup(x) ∨ WorkIndividually(x))) ∀x (Volunteer(x) ∧ Environmental(x) → (ContributeTo(x, environmentalmanagement) ∨ ContributeTo(x, environmentalconservation))) ∃x (Volunteer(x) ∧ ContributeTo(x, naturaldisasterresponse) → WorkInGroup(x) ∧ WorkAsNeeded(x))