With the Amazon Echo, you ask Alexa to play songs, get the weather, and report scores. Those skills, as they're called, have an open API for building conversational apps. Flask-Ask is an Alexa Skills Kit for Python that makes programming the Amazon Echo super easy.
Proximity is closeness. However, elements lacking close proximity can be unified by introducing a third element. An example: an arrow connecting a text label in the margin with a point in the middle of a map. In this way a relationship or unity can be achieved between elements that are far apart but belong together.
The seven elements of art are line, shape, space, value, form, texture, and color. These elements are the building blocks, or ingredients, of art. A line is a mark made on a surface. A shape is a flat area of enclosed space. Space is the illusion of depth on a flat surface. Value is the lightness or darkness of objects in an artwork. Form means the artwork has height, width, and depth.