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

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

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