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

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

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