Safety regulations may require that they wear kneepads or safety goggles when using certain tools.
(Safety regulations; may require; that they wear kneepads or safety goggles when using certain tools) Context(Safety regulations may require,List([0, 30))):(they; wear; kneepads or safety goggles; T:when using certain tools)
Safety regulations may require,List([0, 30))
Safety regulations they
may require wear
that they wear kneepads or safety goggles when using certain tools
kneepads or safety goggles T:when using certain tools