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

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

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