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

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

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