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

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

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