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

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

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