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

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

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