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

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

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