Extract data from HTML file converted from Word - php

Question

I need to extract data from a HTML file. In Microsoft Word I have some data that could be easily converted into HTML; I need to extract that data and insert it into an SQL table.
Record n.1354 - acidi_nucleici
Gli RNA sono diversi dal DNA perché
V - contengono uracile e ribosio
F - contengono uracile e timina
F - contengono uracile e desossiribosio
F - contengono ribosio e timidina
F - contengono ribosio e desossiribosio
Record n.1417 - acidi_nucleici
Il DNA circolare si trova
V - nei mitocondri
F - nei nucleosomi
V - nei batteri
F - nel nucleolo
F - nel Golgi
Record n.1418 - acidi_nucleici
Il DNA nelle cellule si trova
V - nel nucleo
F - nei centri organizzatori microtubulari
V - nei mitocondri
F - nei poliribosomi
F - nel citoplasma
I need to create a function that:
recognizes whether the line is an option or a question (i.e.
if before the line there is "V -" or "F -" it's an option; if there
is "Record n.*" it's the question);
if the line is an option, recognizes whether it is false ("F -") or true ("V -").
I thought of building the SQL table this way:
Column 1: id
Column 2: text
Column 3: question (0 = it's an answer; 1 = it's a question)
Column 4: relate_to (if it is an answer, relate the answer to the question ID)
Column 5: true_false (if it is an answer, is it true or false?)
The main problem is: I don't even know where to start! (except from using file_get_contents function, maybe).