sentences: a affair occurs when one or more nothing interact with zero another & a hard implement requires mechanical matter to kaput ->  a relationship exists between simple machines and energy  a relationship exists between simple machines and energy & a vitalist science matter ->  a physicist studies energy and its relationship to simple machines  a physicist studies energy and its relationship to simple machines & a vitalist is a mean of pseudoscientist -> a physicist is the scientist who study the relationship between simple machines and energy