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

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

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