What are the keywords in the following sentence? cashew nuts grow on tropical trees which are native .
cashew, grow, nut

What are the keywords in the following sentence? wild boar digging up food in the soil with its snout in forest
boar, dig, food, forest, soil

What are the keywords in the following sentence? football player could convince his star forward into staying at the club
club, player, star

What are the keywords in the following sentence? visitors browsing through books during festival on sunday .
book, browse, visitor