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

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

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