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

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

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