What are the keywords in the following sentence? listed site coming out of a tunnel
come, list, site

What are the keywords in the following sentence? ottoman turkish structure against the blue sky on clear day
day, ottoman, structure

What are the keywords in the following sentence? another portion of highway looking down the descent into a city .
city, highway, portion

What are the keywords in the following sentence? large tree with the roots in the air and light coming through its trunk .
come, light, tree