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

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

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