*SUPPORT*
IN: fep dax wif OUT: PINK BLUE
IN: blicket OUT: YELLOW
IN: gazzer blicket wif tufa gazzer OUT: RED YELLOW RED PINK PINK
IN: blicket dax gazzer OUT: RED YELLOW
IN: fep tufa blicket OUT: YELLOW BLUE BLUE
IN: blicket tufa wif OUT: PINK YELLOW YELLOW
IN: wif kiki gazzer tufa blicket OUT: PINK YELLOW RED RED YELLOW RED RED
IN: wif OUT: PINK
IN: wif tufa fep OUT: BLUE PINK PINK
IN: wif tufa gazzer OUT: RED PINK PINK
IN: blicket tufa blicket OUT: YELLOW YELLOW YELLOW
IN: gazzer tufa fep OUT: BLUE RED RED
IN: fep tufa gazzer OUT: RED BLUE BLUE
IN: blicket kiki blicket tufa fep OUT: YELLOW BLUE YELLOW YELLOW BLUE YELLOW YELLOW

*QUERY*
IN: wif wif OUT: PINK PINK
IN: fep dax blicket OUT: YELLOW BLUE
IN: fep OUT: BLUE
IN: gazzer kiki fep kiki gazzer OUT: RED BLUE RED RED BLUE RED RED
IN: gazzer wif OUT: RED PINK
IN: gazzer dax blicket OUT: YELLOW RED
IN: blicket gazzer dax wif OUT: YELLOW PINK RED
IN: wif dax blicket OUT: YELLOW PINK
IN: fep kiki wif tufa gazzer OUT: BLUE RED PINK PINK RED PINK PINK
IN: gazzer tufa blicket OUT: YELLOW RED RED

*GRAMMAR*
fep -> BLUE 
 blicket -> YELLOW 
 gazzer -> RED 
 wif -> PINK 
 u1 tufa u2 -> [u2] [u1] [u1] 
 u1 kiki x1 -> [u1] [x1] [x1] 
 u1 dax u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 