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

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

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