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

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

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