*SUPPORT*
IN: lug tufa lug OUT: GREEN GREEN
IN: wif tufa zup OUT: PURPLE BLUE
IN: lug gazzer OUT: GREEN GREEN
IN: zup dax tufa lug OUT: BLUE YELLOW GREEN
IN: dax kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW
IN: zup OUT: BLUE
IN: zup tufa zup OUT: BLUE BLUE
IN: dax dax gazzer OUT: YELLOW YELLOW YELLOW
IN: zup kiki OUT: BLUE BLUE BLUE BLUE BLUE
IN: lug dax tufa wif OUT: GREEN YELLOW PURPLE
IN: dax OUT: YELLOW
IN: wif OUT: PURPLE
IN: zup gazzer OUT: BLUE BLUE
IN: lug tufa zup OUT: GREEN BLUE

*QUERY*
IN: lug OUT: GREEN
IN: zup dax OUT: BLUE YELLOW
IN: wif lug tufa zup OUT: PURPLE GREEN BLUE
IN: lug wif OUT: GREEN PURPLE
IN: wif zup OUT: PURPLE BLUE
IN: lug kiki OUT: GREEN GREEN GREEN GREEN GREEN
IN: wif kiki OUT: PURPLE PURPLE PURPLE PURPLE PURPLE
IN: lug dax tufa zup OUT: GREEN YELLOW BLUE
IN: dax lug OUT: YELLOW GREEN
IN: wif gazzer OUT: PURPLE PURPLE

*GRAMMAR*
lug -> GREEN 
 wif -> PURPLE 
 zup -> BLUE 
 dax -> YELLOW 
 u1 tufa u2 -> [u1] [u2] 
 u1 gazzer -> [u1] [u1] 
 u1 kiki -> [u1] [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 