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

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

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