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

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

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