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

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

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