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

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

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