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

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

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