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

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

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