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

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

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