*SUPPORT*
IN: dax fep gazzer fep dax lug zup OUT: PINK GREEN BLUE PINK
IN: zup OUT: GREEN
IN: dax kiki OUT: PINK PINK
IN: zup fep wif gazzer wif gazzer OUT: PURPLE BLUE PURPLE BLUE GREEN
IN: dax wif kiki OUT: PINK PURPLE PURPLE
IN: wif lug gazzer OUT: PURPLE BLUE
IN: gazzer fep gazzer dax fep gazzer lug zup OUT: BLUE BLUE PINK GREEN BLUE
IN: wif kiki OUT: PURPLE PURPLE
IN: gazzer wif lug wif OUT: BLUE PURPLE PURPLE
IN: gazzer OUT: BLUE
IN: wif lug dax OUT: PURPLE PINK
IN: dax OUT: PINK
IN: dax fep wif OUT: PURPLE PINK
IN: zup lug zup OUT: GREEN GREEN

*QUERY*
IN: wif fep zup kiki OUT: GREEN GREEN PURPLE
IN: zup fep wif kiki OUT: PURPLE PURPLE GREEN
IN: wif fep wif wif OUT: PURPLE PURPLE PURPLE
IN: dax lug wif OUT: PINK PURPLE
IN: wif OUT: PURPLE
IN: zup lug wif OUT: GREEN PURPLE
IN: zup lug gazzer OUT: GREEN BLUE
IN: dax fep gazzer fep gazzer fep zup kiki OUT: GREEN GREEN BLUE BLUE PINK
IN: wif lug zup OUT: PURPLE GREEN
IN: gazzer kiki OUT: BLUE BLUE

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