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

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

*GRAMMAR*
gazzer -> PINK 
 dax -> GREEN 
 blicket -> BLUE 
 wif -> RED 
 x1 tufa -> [x1] [x1] 
 u1 lug u2 -> [u2] [u1] [u1] [u1] 
 x1 zup x2 -> [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 