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

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

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