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

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

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