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

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

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