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

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

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