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

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

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