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

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

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