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

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

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