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

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

*GRAMMAR*
wif -> RED 
 fep -> BLUE 
 zup -> GREEN 
 blicket -> YELLOW 
 x1 tufa x2 -> [x2] [x1] [x1] 
 x1 kiki u1 -> [x1] [u1] 
 u1 lug u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 