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

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

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