*SUPPORT*
IN: fep fep wif blicket zup tufa fep OUT: GREEN GREEN PURPLE RED GREEN
IN: wif OUT: RED
IN: fep tufa gazzer OUT: GREEN YELLOW
IN: zup zup tufa gazzer tufa fep OUT: PURPLE PURPLE YELLOW GREEN
IN: gazzer fep dax tufa gazzer OUT: YELLOW GREEN GREEN GREEN YELLOW
IN: fep OUT: GREEN
IN: gazzer tufa fep OUT: YELLOW GREEN
IN: zup gazzer fep OUT: PURPLE YELLOW GREEN
IN: wif dax OUT: RED RED RED
IN: fep tufa wif OUT: GREEN RED
IN: gazzer blicket fep dax tufa fep tufa zup OUT: GREEN GREEN GREEN GREEN PURPLE YELLOW
IN: gazzer dax OUT: YELLOW YELLOW YELLOW
IN: zup blicket fep tufa fep OUT: GREEN GREEN PURPLE
IN: zup dax OUT: PURPLE PURPLE PURPLE

*QUERY*
IN: zup tufa wif tufa gazzer OUT: PURPLE RED YELLOW
IN: fep zup dax tufa fep OUT: GREEN PURPLE PURPLE PURPLE GREEN
IN: fep blicket gazzer blicket zup OUT: PURPLE YELLOW GREEN
IN: zup zup dax tufa fep OUT: PURPLE PURPLE PURPLE PURPLE GREEN
IN: gazzer blicket zup OUT: PURPLE YELLOW
IN: zup OUT: PURPLE
IN: fep zup dax tufa fep tufa fep OUT: GREEN PURPLE PURPLE PURPLE GREEN GREEN
IN: wif tufa gazzer OUT: RED YELLOW
IN: fep dax OUT: GREEN GREEN GREEN
IN: gazzer blicket gazzer tufa gazzer OUT: YELLOW YELLOW YELLOW

*GRAMMAR*
wif -> RED 
 gazzer -> YELLOW 
 zup -> PURPLE 
 fep -> GREEN 
 u1 blicket x1 -> [x1] [u1] 
 x1 tufa u1 -> [x1] [u1] 
 u1 dax -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 