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

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

*GRAMMAR*
wif -> RED 
 lug -> YELLOW 
 gazzer -> BLUE 
 tufa -> GREEN 
 u1 zup u2 -> [u1] [u2] 
 u1 fep -> [u1] [u1] [u1] 
 x1 dax u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 