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

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

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