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

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

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