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

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

*GRAMMAR*
lug -> PINK 
 zup -> RED 
 dax -> YELLOW 
 wif -> GREEN 
 u1 kiki u2 -> [u2] [u1] 
 x1 blicket u1 -> [u1] [x1] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 