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

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

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