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

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

*GRAMMAR*
kiki -> GREEN 
 zup -> RED 
 tufa -> PURPLE 
 fep -> BLUE 
 x1 dax x2 -> [x1] [x1] [x2] 
 x1 wif -> [x1] [x1] [x1] 
 x1 gazzer x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 