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

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

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