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

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

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