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

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

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