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

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

*GRAMMAR*
tufa -> PINK 
 wif -> RED 
 dax -> GREEN 
 fep -> PURPLE 
 x1 lug x2 -> [x1] [x2] 
 x1 gazzer -> [x1] [x1] [x1] 
 u1 zup u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 