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

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

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