What are the keywords in the following sentence? Black and white sheep are in a pen looking between wood slats.
look, pen, slat

What are the keywords in the following sentence? living room looking towards the patio from the sofa
look, room, sofa

What are the keywords in the following sentence? The group is waiting to be let inside the building.
building, let, wait

What are the keywords in the following sentence? waves breaking in a stormy sea
break, sea, wave