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

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

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