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

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

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