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

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

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