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

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

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