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

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

*GRAMMAR*
zup -> BLUE 
 lug -> RED 
 kiki -> PURPLE 
 fep -> GREEN 
 x1 tufa u1 -> [u1] [x1] 
 u1 wif u2 -> [u1] [u2] 
 x1 gazzer x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 