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

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

*GRAMMAR*
tufa -> BLUE 
 wif -> RED 
 zup -> GREEN 
 kiki -> YELLOW 
 u1 dax -> [u1] [u1] 
 u1 fep u2 -> [u1] [u2] [u1] [u2] [u2] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 