Sheep have had a strong presence in many cultures, especially in areas where they form the most common type of livestock. In the English language, to call someone a sheep or ovine may allude that they are timid and easily led, if not outright stupid.[103] In contradiction to this image, male sheep are often used as symbols of virility and power, such as for the St. Louis Rams and the Dodge Ram. Sheep are key symbols in fables and nursery rhymes like The Wolf in Sheep's Clothing, Little Bo Peep, Baa, Baa, Black Sheep, and Mary Had a Little Lamb. Novels such as George Orwell's Animal Farm, Haruki Murakami's A Wild Sheep Chase, Thomas Hardy's Far from the Madding Crowd and Three Bags Full: A Sheep Detective Story utilize sheep as characters or plot devices. Poems like William Blake's "The Lamb", songs such as Pink Floyd's Sheep and Bach's aria Sheep may safely graze (Schafe können sicher weiden) use sheep for metaphorical purposes. In more recent popular culture, the 2007 film Black Sheep exploits sheep for horror and comedic effect, ironically turning them into blood-thirsty killers.