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

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

*GRAMMAR*
tufa -> PINK 
 dax -> GREEN 
 fep -> RED 
 gazzer -> BLUE 
 x1 lug x2 -> [x2] [x1] 
 u1 wif u2 -> [u2] [u2] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 