Rename title field contact form on contact page

Hi you.

I'm using Evolve theme. I'm setting up my website. I encountered the following problem: In the contact page (/contact), I rename all the other ingredients, but I do not know how to rename the title in the contact form: Your name, Your e-mail address, Subject, Message, Sent massege
Please guide me. Thank you so much!

Those are from drupal default texts. go to contact.pages.php in /modules/contact or use translation features
I meant "contact.pages.inc"