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

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

*GRAMMAR*
fep -> PURPLE 
 kiki -> GREEN 
 dax -> RED 
 zup -> PINK 
 u1 lug -> [u1] [u1] 
 x1 gazzer x2 -> [x1] [x2] 
 u1 wif u2 -> [u1] [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 