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

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

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