sentence: Several people are captured decorating a Christmas tree in a living room in a fast forward, speed motion video. sentence:   A Christmas tree stands undecorated in a living room. sentence:  Two people decorate the tree with a light cord. sentence:   Three people decorate the tree with blue and silver balls. sentence:   The tree lights are turned on and wrapped gifts are placed under the tree as people start to sit under the tree and a dog casually walks by the tree.