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

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

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