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

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

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