<Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 26 </Td> <Td_colspan="1"> July 11, 2011 (2011 - 07 - 11) </Td> <Td> February 13, 2012 (2012 - 02 - 13) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 26 </Td> <Td_colspan="1"> April 2, 2012 (2012 - 04 - 02) </Td> <Td> October 22, 2012 (2012 - 10 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 52 </Td> <Td_colspan="1"> November 12, 2012 (2012 - 11 - 12) </Td> <Td> March 17, 2014 (2014 - 03 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 43 </Td> <Td_colspan="1"> April 21, 2014 (2014 - 04 - 21) </Td> <Td> June 5, 2015 (2015 - 06 - 05) </Td> </Tr>

How many episodes of adventure time are there