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

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

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