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

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

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