*SUPPORT*
IN: wif wif blicket tufa OUT: PURPLE PINK PURPLE
IN: fep blicket tufa OUT: PINK RED
IN: fep dax OUT: RED RED RED
IN: gazzer blicket tufa OUT: PINK GREEN
IN: tufa OUT: PINK
IN: gazzer kiki OUT: GREEN GREEN
IN: wif kiki OUT: PURPLE PURPLE
IN: gazzer dax OUT: GREEN GREEN GREEN
IN: tufa blicket fep OUT: RED PINK
IN: gazzer blicket fep OUT: RED GREEN
IN: wif fep dax OUT: PURPLE RED RED RED
IN: fep kiki OUT: RED RED
IN: wif gazzer blicket gazzer OUT: PURPLE GREEN GREEN
IN: tufa blicket gazzer OUT: GREEN PINK

*QUERY*
IN: tufa dax OUT: PINK PINK PINK
IN: gazzer wif dax OUT: GREEN PURPLE PURPLE PURPLE
IN: wif blicket wif OUT: PURPLE PURPLE
IN: tufa wif kiki OUT: PINK PURPLE PURPLE
IN: fep tufa dax OUT: RED PINK PINK PINK
IN: tufa blicket tufa OUT: PINK PINK
IN: fep blicket gazzer OUT: GREEN RED
IN: wif OUT: PURPLE
IN: wif dax OUT: PURPLE PURPLE PURPLE
IN: fep tufa blicket tufa OUT: RED PINK PINK

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