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

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

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