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

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

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