Most hospitals have treatment options for cancer patients  All hospitals are able to treat all kinds of burn victims as well as all kinds of Neurology disorders
Ttherefore, there must be some hospitals that treat both cancer and burn victims and some hospitals that treat both cancer and Neurology disorders
Most insects are helpful to humans. Virtually every insect has an exoskeleton and is made up of three parts: a head, thorax, and abdomen. Ttherefore, if there are insects that are helpful to humans and have an exoskeleton, there must also be insects that are helpful to humans and have three parts.