*SUPPORT*
IN: fep OUT: PURPLE
IN: wif zup kiki lug OUT: YELLOW YELLOW GREEN
IN: fep zup OUT: PURPLE PURPLE
IN: lug zup kiki fep blicket tufa OUT: GREEN GREEN PURPLE BLUE
IN: tufa zup OUT: BLUE BLUE
IN: wif kiki lug fep kiki lug blicket wif OUT: YELLOW GREEN PURPLE GREEN YELLOW
IN: lug wif kiki wif blicket wif OUT: GREEN YELLOW YELLOW YELLOW
IN: tufa kiki lug zup OUT: BLUE GREEN GREEN
IN: tufa tufa kiki lug kiki tufa zup OUT: BLUE BLUE GREEN BLUE BLUE
IN: lug tufa blicket fep OUT: GREEN BLUE PURPLE
IN: wif zup blicket fep OUT: YELLOW YELLOW PURPLE
IN: lug zup OUT: GREEN GREEN
IN: wif OUT: YELLOW
IN: wif tufa tufa zup OUT: YELLOW BLUE BLUE BLUE

*QUERY*
IN: fep zup blicket lug OUT: PURPLE PURPLE GREEN
IN: lug zup blicket fep OUT: GREEN GREEN PURPLE
IN: lug blicket lug OUT: GREEN GREEN
IN: lug zup blicket tufa kiki lug OUT: GREEN GREEN BLUE GREEN
IN: lug tufa zup OUT: GREEN BLUE BLUE
IN: tufa zup blicket fep OUT: BLUE BLUE PURPLE
IN: lug OUT: GREEN
IN: fep kiki fep tufa zup blicket lug OUT: PURPLE PURPLE BLUE BLUE GREEN
IN: wif zup OUT: YELLOW YELLOW
IN: lug lug OUT: GREEN GREEN

*GRAMMAR*
tufa -> BLUE 
 wif -> YELLOW 
 fep -> PURPLE 
 lug -> GREEN 
 x1 kiki x2 -> [x1] [x2] 
 x1 blicket u1 -> [x1] [u1] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 