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

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

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