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

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

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