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

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

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