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

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

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