What are the keywords in the following sentence? ferns growing out of a fallen tree in ancient woodland
fern, grow, woodland

What are the keywords in the following sentence? a tourist reads a map
map, read, tourist

What are the keywords in the following sentence? university advises students to wear a to graduation
graduation, student, university

What are the keywords in the following sentence? Several people talking to one another at an event where wine was served.
event, serve, wine