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

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

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