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

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

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