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

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

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