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

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

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