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

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

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