List roles that have more than one employee. List the role description and number of employees.
return roles ;return employees in #1 ;return number of  #2 for each  #1 ;return #1 where  #3 is higher than one ;return role description of  #4 ;return employees in #4 ;return number of  #6 for each  #1 ;return #5 ,  #7
['select', 'project', 'group', 'comparative', 'project', 'project', 'group', 'union']