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

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

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