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

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

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