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

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

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