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

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

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