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

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

*GRAMMAR*
zup -> YELLOW 
 fep -> RED 
 kiki -> GREEN 
 wif -> PURPLE 
 x1 tufa x2 -> [x2] [x1] 
 x1 gazzer x2 -> [x1] [x1] [x2] [x2] [x2] 
 x1 dax -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 