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

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

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