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

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

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