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

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

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