*SUPPORT*
IN: wif fep OUT: YELLOW BLUE
IN: fep kiki OUT: BLUE BLUE BLUE
IN: wif tufa OUT: YELLOW YELLOW YELLOW YELLOW
IN: lug tufa OUT: GREEN GREEN GREEN GREEN
IN: lug OUT: GREEN
IN: fep lug fep tufa OUT: BLUE GREEN BLUE BLUE BLUE BLUE
IN: wif fep dax OUT: YELLOW BLUE PINK
IN: wif OUT: YELLOW
IN: fep tufa OUT: BLUE BLUE BLUE BLUE
IN: dax OUT: PINK
IN: dax dax OUT: PINK PINK
IN: fep dax kiki OUT: BLUE PINK PINK PINK
IN: wif wif kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax tufa OUT: PINK PINK PINK PINK

*QUERY*
IN: lug blicket dax OUT: PINK GREEN
IN: dax kiki OUT: PINK PINK PINK
IN: fep OUT: BLUE
IN: lug dax kiki blicket wif tufa OUT: YELLOW YELLOW YELLOW YELLOW GREEN PINK PINK PINK
IN: fep kiki blicket wif tufa OUT: YELLOW YELLOW YELLOW YELLOW BLUE BLUE BLUE
IN: fep blicket lug kiki OUT: GREEN GREEN GREEN BLUE
IN: wif blicket dax kiki OUT: PINK PINK PINK YELLOW
IN: wif kiki OUT: YELLOW YELLOW YELLOW
IN: lug kiki OUT: GREEN GREEN GREEN
IN: lug lug OUT: GREEN GREEN

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