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

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

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