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

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

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