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

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

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