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

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

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