subsetting multiple rows

Take a look at the filter function in the package dplyr. Subset rows using column values — filter • dplyr

Here's a tiny example of how you would do this but if you need more help. Please look into providing a reproducible example (FAQ: How to do a minimal reproducible example ( reprex ) for beginners):

subsetteddata <- dataset %>%
   filter(variablename %in% c("football", "camera", "car", "plane"))