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

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

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