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

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

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