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

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

*GRAMMAR*
gazzer -> BLUE 
 tufa -> RED 
 lug -> GREEN 
 zup -> PURPLE 
 x1 wif u1 -> [u1] [x1] [x1] [u1] 
 x1 dax x2 -> [x1] [x2] 
 u1 kiki u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 