premise: Last couple of weeks ago , I made sports themed pictures to decorate my nephew and my son 's bedroom . I had that idea a while ago , but was too busy to put into action . I went to my sister 's house , and my nephew said he wants sports themed wall decoration for his bedroom . He wants baseball and soccer ball pictures . What 's a possible reason I decorated my nephew and my son 's bedroom ?
hypothesis: Because I went to my sister 's house .