Given the task definition, example input & output, solve the new input case.
In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.
Example: Preheat oven to 375 degrees., Boil syrup, sugar and shortening over medium heat, stirring constantly., Remove from heat., Gradually stir in flour and nuts., Drop by teaspoonfuls about 3 inches apart on lightly greased cookie sheet., Bake 5 to 6 min., Remove from oven and let stand 5 min, before removing from sheet., May be rolled into cylindrical shape while still hot., If cooled too much, return to oven for a minute., Yield: 4 dozen cookies.
Output: flour, nuts, corn syrup, shortening, brown sugar
This is a good example, as we see the NER is generated correctly from the directions.

New input case for you: Place blackberries in the bowl of a food processor and pulse 3 or 4 times (you don't want to puree them, just chop them a little) or coarsely chop blackberries. Set aside., In a large bowl, whisk together sweetened condensed milk and half-and-half. Split vanilla bean and scrape seeds into the mixture (or add vanilla extract) and mix well. Fold in blackberries and pour into an ice cream freezer. Follow manufacturer's directions to freeze ice cream (for my ice cream maker, it took about 30 minutes). Serve immediately or place in a covered container and freeze until ready to serve., Enjoy!, Makes about 1.5 quarts.
Output:
Blackberries, Milk, Vanilla Bean