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

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

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