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

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

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