*SUPPORT*
IN: zup lug OUT: RED RED RED
IN: zup OUT: RED
IN: zup zup gazzer zup OUT: RED RED RED
IN: zup zup tufa fep OUT: BLUE RED RED
IN: zup gazzer zup OUT: RED RED
IN: zup tufa fep zup gazzer kiki OUT: BLUE PURPLE RED RED
IN: kiki gazzer fep OUT: BLUE PURPLE
IN: fep lug tufa fep wif lug OUT: BLUE YELLOW YELLOW YELLOW BLUE BLUE BLUE
IN: wif lug OUT: YELLOW YELLOW YELLOW
IN: wif kiki zup lug OUT: YELLOW PURPLE RED RED RED
IN: fep lug OUT: BLUE BLUE BLUE
IN: kiki tufa kiki tufa wif OUT: YELLOW PURPLE PURPLE
IN: wif gazzer zup kiki tufa zup tufa kiki OUT: PURPLE RED RED PURPLE YELLOW
IN: zup gazzer fep lug OUT: BLUE BLUE BLUE RED

*QUERY*
IN: zup kiki tufa zup OUT: RED RED PURPLE
IN: wif gazzer kiki gazzer kiki OUT: PURPLE PURPLE YELLOW
IN: kiki gazzer kiki wif tufa fep OUT: BLUE PURPLE YELLOW PURPLE
IN: fep OUT: BLUE
IN: wif gazzer wif lug tufa zup OUT: RED YELLOW YELLOW YELLOW YELLOW
IN: kiki kiki OUT: PURPLE PURPLE
IN: wif gazzer kiki lug OUT: PURPLE PURPLE PURPLE YELLOW
IN: kiki lug OUT: PURPLE PURPLE PURPLE
IN: wif lug tufa kiki OUT: PURPLE YELLOW YELLOW YELLOW
IN: wif gazzer zup gazzer wif kiki gazzer fep OUT: YELLOW BLUE PURPLE RED YELLOW

*GRAMMAR*
wif -> YELLOW 
 zup -> RED 
 kiki -> PURPLE 
 fep -> BLUE 
 u1 gazzer x1 -> [x1] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 u1 lug -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 