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

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

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