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

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

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