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

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

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