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

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

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