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

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

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