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

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

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