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

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

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