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

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

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