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

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

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