story: Tony wanted to decorate his Christmas tree. He went to the attic and got all of the ornaments down. He opened the box and began taking out the ornaments. One by one, he hung all of them on the tree. He finished the tree by placing the star on the top.
 selected sentence: One by one, he hung all of them on the tree.
Tony opens the box of ornaments >Causes/Enables> Tony hangs the ornaments on the tree