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

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

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