*SUPPORT*
IN: kiki gazzer kiki lug tufa OUT: RED PINK BLUE PINK
IN: zup fep OUT: GREEN GREEN
IN: kiki lug zup lug tufa OUT: RED GREEN PINK
IN: tufa wif gazzer wif kiki fep lug kiki OUT: RED BLUE PINK PINK PINK
IN: zup tufa OUT: GREEN RED
IN: gazzer fep OUT: BLUE BLUE
IN: zup OUT: GREEN
IN: tufa tufa gazzer OUT: RED RED BLUE
IN: tufa OUT: RED
IN: zup wif zup kiki fep OUT: GREEN GREEN PINK PINK
IN: tufa wif kiki fep OUT: RED PINK PINK
IN: tufa fep OUT: RED RED
IN: gazzer lug gazzer OUT: BLUE BLUE
IN: kiki OUT: PINK

*QUERY*
IN: gazzer wif tufa OUT: BLUE RED
IN: zup fep lug tufa OUT: RED GREEN GREEN
IN: gazzer OUT: BLUE
IN: zup zup OUT: GREEN GREEN
IN: tufa fep lug gazzer OUT: BLUE RED RED
IN: gazzer zup kiki lug zup OUT: GREEN BLUE GREEN PINK
IN: kiki wif zup gazzer fep OUT: PINK GREEN BLUE BLUE
IN: kiki lug zup lug gazzer OUT: BLUE GREEN PINK
IN: tufa wif zup zup fep lug kiki OUT: RED PINK GREEN GREEN GREEN
IN: tufa zup lug tufa lug kiki OUT: PINK RED RED GREEN

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