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

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

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