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

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

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