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

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

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