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

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

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