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

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

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