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

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

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