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

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

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