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

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

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