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

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

*GRAMMAR*
blicket -> RED 
 wif -> GREEN 
 dax -> YELLOW 
 zup -> BLUE 
 x1 fep x2 -> [x1] [x2] 
 u1 kiki u2 -> [u1] [u2] 
 u1 tufa -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 