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

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

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