*SUPPORT*
IN: zup dax OUT: PINK BLUE
IN: tufa dax OUT: GREEN BLUE
IN: wif OUT: PURPLE
IN: wif lug wif OUT: PURPLE PURPLE
IN: dax kiki wif kiki wif kiki zup OUT: PINK PURPLE PURPLE BLUE
IN: zup blicket kiki zup kiki wif OUT: PURPLE PINK PINK PINK
IN: wif blicket blicket OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax lug tufa lug zup blicket OUT: PINK PINK GREEN BLUE
IN: tufa lug zup OUT: PINK GREEN
IN: zup zup blicket OUT: PINK PINK PINK PINK
IN: tufa OUT: GREEN
IN: tufa zup blicket blicket OUT: GREEN PINK GREEN PINK GREEN PINK GREEN PINK
IN: zup OUT: PINK
IN: zup zup OUT: PINK PINK

*QUERY*
IN: dax zup kiki zup blicket OUT: PINK BLUE PINK PINK BLUE PINK
IN: tufa dax kiki tufa blicket kiki wif OUT: PURPLE GREEN GREEN BLUE GREEN GREEN BLUE
IN: dax OUT: BLUE
IN: wif blicket OUT: PURPLE PURPLE
IN: dax dax tufa OUT: BLUE BLUE GREEN
IN: tufa zup OUT: GREEN PINK
IN: dax zup OUT: BLUE PINK
IN: wif zup kiki dax OUT: BLUE PURPLE PINK
IN: zup blicket kiki dax OUT: BLUE PINK PINK
IN: tufa blicket kiki zup blicket OUT: PINK GREEN GREEN PINK GREEN GREEN

*GRAMMAR*
tufa -> GREEN 
 dax -> BLUE 
 zup -> PINK 
 wif -> PURPLE 
 x1 lug x2 -> [x2] [x1] 
 x1 blicket -> [x1] [x1] 
 x1 kiki u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 