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

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

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