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

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

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