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

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

*GRAMMAR*
gazzer -> PURPLE 
 dax -> YELLOW 
 tufa -> BLUE 
 fep -> GREEN 
 x1 blicket -> [x1] [x1] [x1] 
 u1 wif u2 -> [u2] [u1] 
 x1 lug x2 -> [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 