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

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

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