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

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

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