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

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

*GRAMMAR*
blicket -> YELLOW 
 zup -> RED 
 lug -> GREEN 
 gazzer -> BLUE 
 u1 tufa -> [u1] [u1] [u1] 
 x1 dax x2 -> [x1] [x2] [x1] [x2] [x1] [x2] [x1] 
 u1 kiki u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 