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

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

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