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

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

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