*SUPPORT*
IN: blicket OUT: RED
IN: tufa fep blicket dax lug tufa OUT: RED GREEN PINK GREEN
IN: wif wif lug fep tufa OUT: GREEN BLUE BLUE PINK
IN: lug zup tufa zup tufa OUT: PINK GREEN GREEN
IN: wif OUT: BLUE
IN: wif zup blicket blicket OUT: BLUE RED RED
IN: blicket zup wif OUT: RED BLUE
IN: lug zup blicket zup wif fep blicket OUT: RED PINK RED BLUE
IN: blicket zup tufa OUT: RED GREEN
IN: lug zup tufa tufa zup wif blicket OUT: PINK GREEN GREEN BLUE RED
IN: tufa fep lug OUT: PINK GREEN
IN: wif lug zup wif OUT: BLUE PINK BLUE
IN: wif zup blicket zup lug OUT: BLUE RED PINK
IN: tufa dax lug lug dax blicket dax wif OUT: GREEN PINK PINK RED BLUE

*QUERY*
IN: lug OUT: PINK
IN: wif wif OUT: BLUE BLUE
IN: wif zup wif lug OUT: BLUE BLUE PINK
IN: wif zup wif fep tufa OUT: GREEN BLUE BLUE
IN: tufa OUT: GREEN
IN: tufa lug OUT: GREEN PINK
IN: lug zup wif fep wif zup blicket OUT: BLUE RED PINK BLUE
IN: blicket zup blicket OUT: RED RED
IN: lug blicket tufa fep blicket zup wif OUT: RED BLUE PINK RED GREEN
IN: lug zup tufa OUT: PINK GREEN

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