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

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

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