What are the keywords in the following sentence? the couple spends time at home for western christian holiday
couple, holiday, spend

What are the keywords in the following sentence? the average number of thunderstorm days per year .
day, number, year

What are the keywords in the following sentence? small bunches of flowers are left at the scene of a homicide .
flower, leave, scene

What are the keywords in the following sentence? A bathroom with tall ceilings and an open window on the top.
bathroom, top, window