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

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

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