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

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

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