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

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

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