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

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

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