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

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

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