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

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

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