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

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

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