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

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

*GRAMMAR*
lug -> GREEN 
 gazzer -> RED 
 zup -> PURPLE 
 dax -> BLUE 
 x1 wif -> [x1] [x1] 
 x1 tufa u1 -> [x1] [u1] 
 x1 kiki x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 