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

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

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