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

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

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