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

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

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