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

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

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