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

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

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