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

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

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