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

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

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