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

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

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