What are the keywords in the following sentence? biological species and thyme grow wild all over the countryside .
countryside, grow, specie

What are the keywords in the following sentence? volcanic activity under meromictic lake produced a cloud of carbon dioxide that asphyxiated villagers
activity, asphyxiate, cloud, dioxide, villager

What are the keywords in the following sentence? builder depicted as written work .
builder, depict, work, write

What are the keywords in the following sentence? celebrity is in the studio working on some new music he is
music, studio, work