How many countries had higher maternal mortality rates than Guinea Bissau in 2010?
return Guinea Bissau ;return maternal mortality rate in  2010 of #1 ;return countries ;return maternal mortality rates in  2010 of #3 ;return #3 where #4 is higher than #2 ;return number of  #5
['select', 'project', 'select', 'project', 'comparative', 'aggregate']