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

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

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