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

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

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