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

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

*GRAMMAR*
tufa -> GREEN 
 gazzer -> BLUE 
 kiki -> RED 
 zup -> PURPLE 
 x1 fep x2 -> [x1] [x2] 
 u1 dax -> [u1] [u1] [u1] 
 u1 wif u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 