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

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

*GRAMMAR*
gazzer -> PINK 
 wif -> RED 
 dax -> GREEN 
 lug -> YELLOW 
 x1 fep x2 -> [x1] [x1] [x2] 
 u1 zup -> [u1] [u1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 