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

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

*GRAMMAR*
tufa -> RED 
 fep -> GREEN 
 kiki -> PINK 
 lug -> BLUE 
 x1 blicket x2 -> [x1] [x2] 
 x1 wif u1 -> [u1] [x1] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 