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

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

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