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

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

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