What are the keywords in the following sentence:

scientists participating in park along a road to observe a storm
observe, park, participate, road, storm
Vilka är nyckelorden i följande mening: forskare som deltar i parken längs en väg för att observera en storm
What are the keywords in the following sentence: researchers participating in the park along a path to observe a storm
observera, parkera, delta, väg, storm
observe, park, delta, road, storm