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

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

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