Please answer the following question: Information: - Ride Satan Ride is the debut album by the American stoner doom metal band Serpent Throne . - The Battle of Old Crow is the second album by the American stoner/doom metal band Serpent Throne. - Serpent Throne is an American instrumental stoner/doom metal band from Philadelphia, Pennsylvania that formed in 2005. The band has released four studio albums: "Ride Satan Ride" released in 2007 on the label Season of Mist, "The Battle of Old Crow" in 2009 on Vessel Records, "White SummerBlack Winter" in 2010 on Translation Loss Records, and "Brother Lucifer" in 2013 on Prophase Music. - Season of Mist is an independent record label and record distributor with subsidiaries in France and the United States. The record label was founded in 1996 by Michael S. Berberian in Marseille, France. From the start releasing black metal, pagan metal and death metal records, the label moved on to releasing albums of avant-garde metal, gothic metal and punk bands as well. The label has two offices, one in Marseille, France and one in Philadelphia, U.S.. - Doom metal is an extreme style of heavy metal music that typically uses slower tempos, low-tuned guitars and a much "thicker" or "heavier" sound than other metal genres. Both the music and the lyrics intend to evoke a sense of despair, dread, and impending doom. The genre is strongly influenced by the early work of Black Sabbath, who formed a prototype for doom metal with songs such as "Black Sabbath", "Children of the Grave", "Electric Funeral" and "Into the Void". During the first half of the 1980s, a number of bands from England (Pagan Altar, Witchfinder General), the United States (Pentagram, Saint Vitus, Trouble) and Sweden (Candlemass, Count Raven) defined doom metal as a distinct genre. - Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east. - Philadelphia is the largest city in the Commonwealth of Pennsylvania and the fifth-most populous city in the United States, with an estimated population of 1,567,442 and more than 6million in the seventh-largest metropolitan statistical area, . Philadelphia is the economic and cultural anchor of the Delaware Valleya region located in the Northeastern United States at the confluence of the Delaware and Schuylkill rivers with 7.2million people residing in the eighth-largest combined statistical area in the United States. Given the paragraphs above, decide what entity has the relation 'followed by' with 'the battle of old crow'.
Answer:
ride satan ride