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

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

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