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

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

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