*SUPPORT*
IN: wif wif tufa zup fep OUT: BLUE BLUE RED RED RED
IN: gazzer blicket wif kiki wif zup gazzer OUT: PINK PINK PINK GREEN RED RED
IN: gazzer OUT: PINK
IN: blicket fep kiki blicket zup wif OUT: RED RED GREEN GREEN BLUE
IN: gazzer tufa OUT: PINK PINK
IN: wif tufa OUT: RED RED
IN: wif kiki blicket zup blicket OUT: GREEN GREEN GREEN RED
IN: fep kiki fep OUT: BLUE BLUE
IN: gazzer kiki blicket OUT: GREEN PINK
IN: blicket fep tufa OUT: GREEN BLUE BLUE
IN: wif kiki gazzer OUT: PINK RED
IN: gazzer zup fep OUT: BLUE BLUE PINK
IN: wif wif OUT: RED RED
IN: fep OUT: BLUE

*QUERY*
IN: fep tufa zup gazzer OUT: PINK PINK BLUE BLUE
IN: fep tufa OUT: BLUE BLUE
IN: fep wif fep OUT: BLUE RED BLUE
IN: blicket fep wif tufa zup blicket zup gazzer OUT: PINK PINK GREEN GREEN GREEN BLUE RED RED
IN: fep fep fep blicket zup fep OUT: BLUE BLUE BLUE BLUE BLUE GREEN
IN: wif kiki fep OUT: BLUE RED
IN: wif kiki blicket zup fep OUT: BLUE BLUE GREEN RED
IN: wif blicket blicket kiki blicket OUT: RED GREEN GREEN GREEN
IN: blicket tufa zup fep OUT: BLUE BLUE GREEN GREEN
IN: fep kiki gazzer OUT: PINK BLUE

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