*SUPPORT*
IN: tufa OUT: BLUE
IN: tufa gazzer OUT: BLUE YELLOW
IN: gazzer kiki OUT: YELLOW YELLOW
IN: gazzer kiki kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: fep OUT: PINK
IN: wif OUT: GREEN
IN: tufa lug gazzer zup kiki OUT: YELLOW YELLOW YELLOW YELLOW BLUE BLUE
IN: tufa wif gazzer gazzer zup OUT: BLUE GREEN YELLOW YELLOW BLUE GREEN YELLOW YELLOW
IN: wif kiki OUT: GREEN GREEN
IN: tufa tufa zup OUT: BLUE BLUE BLUE BLUE
IN: gazzer OUT: YELLOW
IN: tufa kiki OUT: BLUE BLUE
IN: tufa lug wif kiki OUT: GREEN GREEN BLUE BLUE
IN: gazzer zup zup OUT: YELLOW YELLOW YELLOW YELLOW

*QUERY*
IN: tufa zup kiki zup OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: gazzer zup OUT: YELLOW YELLOW
IN: tufa kiki lug wif OUT: GREEN BLUE BLUE BLUE BLUE
IN: wif fep zup zup OUT: GREEN PINK GREEN PINK GREEN PINK GREEN PINK
IN: gazzer fep zup OUT: YELLOW PINK YELLOW PINK
IN: tufa zup OUT: BLUE BLUE
IN: wif wif OUT: GREEN GREEN
IN: gazzer zup kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: tufa fep zup OUT: BLUE PINK BLUE PINK
IN: fep fep tufa wif OUT: PINK PINK BLUE GREEN

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