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

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

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