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

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

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