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

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

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