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

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

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