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

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

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