*SUPPORT*
IN: tufa zup lug kiki OUT: GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE
IN: tufa wif OUT: GREEN BLUE
IN: dax fep tufa OUT: GREEN RED RED GREEN
IN: wif OUT: BLUE
IN: lug lug zup wif OUT: PURPLE PURPLE BLUE
IN: wif zup tufa OUT: BLUE GREEN
IN: dax OUT: RED
IN: lug kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: wif fep wif OUT: BLUE BLUE BLUE BLUE
IN: dax zup tufa OUT: RED GREEN
IN: dax lug OUT: RED PURPLE
IN: tufa OUT: GREEN
IN: dax fep dax OUT: RED RED RED RED
IN: dax fep lug wif OUT: PURPLE BLUE RED RED PURPLE BLUE

*QUERY*
IN: wif wif fep tufa OUT: BLUE GREEN BLUE BLUE GREEN
IN: wif zup dax OUT: BLUE RED
IN: tufa kiki OUT: GREEN GREEN GREEN GREEN
IN: tufa tufa zup dax zup lug zup lug OUT: GREEN GREEN RED PURPLE PURPLE
IN: dax zup wif OUT: RED BLUE
IN: tufa fep lug zup lug OUT: PURPLE GREEN GREEN PURPLE PURPLE
IN: wif tufa OUT: BLUE GREEN
IN: dax zup lug kiki OUT: RED PURPLE RED PURPLE RED PURPLE RED PURPLE
IN: tufa fep lug OUT: PURPLE GREEN GREEN PURPLE
IN: lug wif OUT: PURPLE BLUE

*GRAMMAR*
wif -> BLUE 
 lug -> PURPLE 
 dax -> RED 
 tufa -> GREEN 
 x1 zup u1 -> [x1] [u1] 
 x1 kiki -> [x1] [x1] [x1] [x1] 
 u1 fep x1 -> [x1] [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 