*SUPPORT*
IN: tufa wif OUT: RED RED RED
IN: tufa zup dax OUT: RED PURPLE RED
IN: dax fep zup fep OUT: PURPLE GREEN GREEN GREEN
IN: tufa blicket OUT: RED RED
IN: tufa tufa gazzer fep wif OUT: RED RED YELLOW GREEN GREEN GREEN
IN: fep wif OUT: GREEN GREEN GREEN
IN: dax blicket OUT: PURPLE PURPLE
IN: tufa zup gazzer blicket OUT: RED YELLOW RED RED YELLOW RED
IN: fep zup gazzer OUT: GREEN YELLOW GREEN
IN: fep zup dax OUT: GREEN PURPLE GREEN
IN: gazzer zup tufa OUT: YELLOW RED YELLOW
IN: gazzer OUT: YELLOW
IN: dax zup gazzer blicket OUT: PURPLE YELLOW PURPLE PURPLE YELLOW PURPLE
IN: tufa zup gazzer OUT: RED YELLOW RED

*QUERY*
IN: dax tufa tufa wif OUT: PURPLE RED RED RED RED
IN: dax dax zup tufa OUT: PURPLE PURPLE RED PURPLE
IN: gazzer blicket blicket OUT: YELLOW YELLOW YELLOW YELLOW
IN: gazzer fep wif OUT: YELLOW GREEN GREEN GREEN
IN: dax zup tufa OUT: PURPLE RED PURPLE
IN: gazzer gazzer gazzer zup fep OUT: YELLOW YELLOW YELLOW GREEN YELLOW
IN: gazzer wif OUT: YELLOW YELLOW YELLOW
IN: dax wif OUT: PURPLE PURPLE PURPLE
IN: gazzer wif blicket OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: gazzer gazzer zup tufa OUT: YELLOW YELLOW RED YELLOW

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