*SUPPORT*
IN: dax kiki dax OUT: BLUE BLUE
IN: wif dax dax fep OUT: YELLOW BLUE BLUE YELLOW BLUE BLUE
IN: wif kiki dax OUT: BLUE YELLOW
IN: dax zup fep OUT: BLUE GREEN BLUE GREEN
IN: wif OUT: YELLOW
IN: dax lug zup kiki zup OUT: BLUE GREEN GREEN BLUE
IN: wif dax kiki zup fep OUT: YELLOW GREEN BLUE YELLOW GREEN BLUE
IN: blicket kiki dax OUT: BLUE PURPLE
IN: wif lug zup lug blicket kiki dax OUT: YELLOW GREEN BLUE PURPLE GREEN YELLOW
IN: zup blicket blicket zup zup kiki dax OUT: GREEN PURPLE PURPLE GREEN BLUE GREEN
IN: dax lug blicket OUT: BLUE PURPLE BLUE
IN: blicket fep OUT: PURPLE PURPLE
IN: zup fep fep OUT: GREEN GREEN GREEN GREEN
IN: dax OUT: BLUE

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

*GRAMMAR*
blicket -> PURPLE 
 wif -> YELLOW 
 dax -> BLUE 
 zup -> GREEN 
 x1 fep -> [x1] [x1] 
 u1 kiki u2 -> [u2] [u1] 
 u1 lug x1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 