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

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

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