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

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

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