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

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

*GRAMMAR*
tufa -> BLUE 
 fep -> RED 
 wif -> GREEN 
 dax -> PURPLE 
 x1 lug x2 -> [x2] [x1] [x1] 
 u1 blicket u2 -> [u2] [u1] 
 u1 gazzer u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 