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

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

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