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

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

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