*SUPPORT*
IN: tufa zup dax OUT: YELLOW GREEN
IN: lug zup dax kiki OUT: PINK GREEN PINK GREEN
IN: fep OUT: BLUE
IN: tufa dax OUT: YELLOW GREEN
IN: dax lug kiki OUT: GREEN PINK GREEN PINK
IN: tufa zup fep OUT: YELLOW BLUE
IN: dax dax zup lug OUT: GREEN GREEN PINK
IN: dax lug OUT: GREEN PINK
IN: dax dax lug OUT: GREEN GREEN PINK
IN: lug zup lug OUT: PINK PINK
IN: lug OUT: PINK
IN: fep zup dax OUT: BLUE GREEN
IN: dax OUT: GREEN
IN: tufa OUT: YELLOW

*QUERY*
IN: dax tufa OUT: GREEN YELLOW
IN: dax fep zup fep OUT: GREEN BLUE BLUE
IN: dax zup lug OUT: GREEN PINK
IN: fep kiki OUT: BLUE BLUE
IN: fep lug OUT: BLUE PINK
IN: lug dax zup lug wif dax wif fep OUT: BLUE GREEN PINK GREEN PINK
IN: tufa dax zup lug kiki OUT: YELLOW GREEN PINK YELLOW GREEN PINK
IN: tufa zup dax kiki OUT: YELLOW GREEN YELLOW GREEN
IN: dax zup dax OUT: GREEN GREEN
IN: lug fep zup dax wif fep kiki OUT: BLUE PINK BLUE GREEN BLUE PINK BLUE GREEN

*GRAMMAR*
fep -> BLUE 
 dax -> GREEN 
 lug -> PINK 
 tufa -> YELLOW 
 u1 zup u2 -> [u1] [u2] 
 x1 kiki -> [x1] [x1] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 