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

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

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