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

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

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