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

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

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