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

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

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