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

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

*GRAMMAR*
wif -> GREEN 
 tufa -> PURPLE 
 zup -> RED 
 lug -> BLUE 
 u1 dax -> [u1] [u1] [u1] 
 u1 fep u2 -> [u2] [u1] 
 x1 kiki x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 