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

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

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