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

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

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