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

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

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