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

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

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