Schemata are interrelated and multiple conflicting schemata can be applied to the same information. Schemata are generally thought to have a level of activation, which can spread among related schemata. Which schema is selected can depend on factors such as current activation, accessibility, and priming.
Hornets will look for a sheltered location to make their nest, and such nests can be found under leaves, in tree branches, on windows, in attics, under rafters, inside abandoned buildings or vehicles, etc. Any space that is protected from the weather and undisturbed can attract hornets to nest.
Wasps typically fly in the vicinity of the hives or nests they build. If you have wasps in or near your pool, it is likely there is a wasp nest somewhere nearby. Wasps usually build their nests in mud, trees or other high places such as the eaves of houses, barns or other sheds.