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

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

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