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

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

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