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

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

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