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

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

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