What are foothold can you plz tell me

Which two phrases in this information about medicare prescription drug coverage are noun phrases

Arrange the events in ivan ilyich's life, which are described in chapters 1–4 of leo tolstoy's the death of ivan ilyich, in chronological order. ivan ilyich becomes assistant public prosecutor, a position that he serves in for seven years. ivan ilyich meets zachar ivanovich in st. petersburg and receives a guaranteed appointment in the department of justice. ivan ilyich graduates from the school of law and qualifies for the tenth rank of the civil service. ivan ilyich becomes a public prosecutor and is transferred to another province. ivan ilyich is offered the post of examining magistrate in a russian province.

What is the independent cause in this sentence? "if the poem is about going mad when love is lost, what would happen if love didn't die? "