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

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

*GRAMMAR*
gazzer -> RED 
 tufa -> GREEN 
 zup -> BLUE 
 fep -> PURPLE 
 u1 wif u2 -> [u2] [u1] 
 x1 dax -> [x1] [x1] 
 u1 lug -> [u1] [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 