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

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

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