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

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

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