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

*QUERY*
IN: tufa OUT: PURPLE
IN: tufa lug fep OUT: PINK PURPLE
IN: fep dax lug wif OUT: PINK GREEN YELLOW
IN: dax lug fep OUT: PINK YELLOW
IN: wif lug tufa OUT: PURPLE GREEN
IN: fep lug dax OUT: YELLOW PINK
IN: wif gazzer OUT: GREEN GREEN
IN: fep wif gazzer OUT: PINK GREEN GREEN
IN: wif dax lug wif OUT: GREEN GREEN YELLOW
IN: wif zup OUT: GREEN GREEN

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