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

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

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