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

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

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