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

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

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