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

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

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