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

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

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