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

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

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