premise: Robert Singer (producer) worked on a steamboat.
hypothesis: Robert E. Lee , nicknamed the `` Monarch of the Mississippi , '' was a steamboat built in New Albany , Indiana , in 1866 . Robert Singer (producer) . He is best known for his work on Supernatural where he serves as an executive producer , director and occasional writer . Singer also created the series Reasonable Doubts and has worked as a producer and director on various television series , including Lois & Clark : The New Adventures of Superman . He also served as a producer for the film Cujo