*SUPPORT*
IN: wif wif OUT: YELLOW YELLOW
IN: tufa OUT: PINK
IN: wif zup OUT: YELLOW GREEN
IN: tufa wif fep OUT: PINK YELLOW PINK YELLOW
IN: zup fep OUT: GREEN GREEN
IN: lug zup OUT: RED GREEN
IN: lug lug OUT: RED RED
IN: wif gazzer lug OUT: RED YELLOW
IN: zup wif OUT: GREEN YELLOW
IN: wif fep OUT: YELLOW YELLOW
IN: wif tufa OUT: YELLOW PINK
IN: tufa zup wif OUT: PINK GREEN YELLOW
IN: wif OUT: YELLOW
IN: zup wif gazzer tufa OUT: PINK GREEN YELLOW

*QUERY*
IN: tufa zup OUT: PINK GREEN
IN: tufa lug OUT: PINK RED
IN: tufa lug fep fep OUT: PINK RED PINK RED PINK RED PINK RED
IN: lug OUT: RED
IN: zup OUT: GREEN
IN: lug fep OUT: RED RED
IN: lug wif gazzer wif zup fep OUT: YELLOW GREEN YELLOW GREEN RED YELLOW
IN: zup zup fep fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug fep fep OUT: RED RED RED RED
IN: zup gazzer tufa OUT: PINK GREEN

*GRAMMAR*
lug -> RED 
 zup -> GREEN 
 wif -> YELLOW 
 tufa -> PINK 
 x1 kiki x2 -> [x2] [x1] [x1] [x2] [x1] 
 x1 gazzer x2 -> [x2] [x1] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 