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

*QUERY*
IN: zup OUT: GREEN
IN: wif lug fep OUT: PINK BLUE
IN: tufa lug wif OUT: YELLOW PINK
IN: zup dax blicket blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: fep dax blicket OUT: BLUE BLUE BLUE BLUE
IN: tufa dax OUT: YELLOW YELLOW
IN: tufa zup wif wif wif tufa lug tufa OUT: YELLOW GREEN PINK PINK PINK YELLOW YELLOW
IN: zup lug tufa OUT: GREEN YELLOW
IN: zup fep OUT: GREEN BLUE
IN: wif lug zup OUT: PINK GREEN

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