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

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

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