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

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

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