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

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

*GRAMMAR*
zup -> RED 
 lug -> BLUE 
 wif -> PINK 
 dax -> GREEN 
 x1 fep x2 -> [x2] [x1] 
 x1 blicket u1 -> [u1] [x1] 
 x1 tufa -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 