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

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

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