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

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

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