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

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

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