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

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

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