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

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

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