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

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

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