For the following string in v$4,$ do the following:

v$4<-"$So far, you$$ve used a bunch of strings without learning much about the details. Now it$$s time to dive into them, learn what makes strings tick, and master some of the powerful string manipulation tools you have at your disposal."

# a$.$ Split the string in v$4$ by space.

# b$.$ Unlist the split string to convert it to a vector.

# c$.$ Assign the split vector to v$5.$

# d$.$ Extract the $2$nd$,5$th$,$ and $10$th words in v$5.$

# e$.$ Copy the results in the console to the answer box without any editing.