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

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

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