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

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

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