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

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

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