 position; from: -0.2 1 0; to: -0.2 1.8 0"
                    position="-.2 1.2 0"></a-entity>
          <a-entity mixin="object-on-column color sphere yoyo"
                    animation__yoyo="property: position; from: 0 1.8 0; to: 0 1 0"></a-entity>
          <a-entity mixin="object-on-column color sphere yoyo" position=".2 1 0"
                    animation__yoyo="property: position; to: 0.2 1.8 0"></a-entity>
        </a-entity>
        <a-entity mixin="column-bottom"></a-entity>
      </a-entity>

  