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

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

*GRAMMAR*
tufa -> PINK 
 dax -> GREEN 
 gazzer -> RED 
 lug -> YELLOW 
 u1 blicket u2 -> [u2] [u1] [u1] 
 u1 zup x1 -> [x1] [u1] 
 u1 wif -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 