Question: What do I need to provide to border control when travelling to the UK?

Answer passage (source: UK):
page_title: Entering the UK
section_headers: Provide your journey and contact details when you travel to the UK
section_content: From 8 June, if you’re travelling to the UK you’ll need to fill in an online
form to provide your journey and contact details before you travel.
You’ll be able to find the form on this page when it’s available - check again
before you travel.
You might need to show that you’ve completed the form when you arrive at the
UK border.
If you refuse to fill in the form, you may be fined. You also may not be
allowed to enter the UK (unless you’re either British or a UK resident).
The government will use this information to contact you if you or someone
you’ve travelled with develops coronavirus symptoms, and to check that you’re
self-isolating for the first 14 days after you arrive in the UK.
If you develop coronavirus symptoms
Do not travel if you have coronavirus
symptoms.
If you develop coronavirus symptoms when you’re travelling to the UK, tell the
crew or driver on your plane, ferry, train or bus. They’ll let staff in the
airport, port or station know, so they can tell you what you should do next
when you arrive.

Reviewer feedback on this answer:
Has information about what you need to provide to border control on entering the UK.
This is a direct answer to the question. This answer provides information on what documents travelers need to provide to border control when arriving at the UK border.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: UK):
page_title: Guidance Coronavirus outbreak FAQs: what you can and can't do
section_headers: Borders / international visitors
Is this for foreign travellers only or British people returning home from holiday or living overseas?
section_content: Please note - these measures are NOT yet in force. We will set out further
detail, including from when these will be in force, in due course.
All arrivals including British nationals will be required to provide their
contact information and self-isolate upon arrival, other than those on a short
list of exemptions.

Reviewer feedback on this answer:
Doesn't actually provide information about what you have to provide to border control.
This is a direct answer to the question. This answer provides information on what travelers and British national required to provide upon arrival in UK.

Reviewer ratings:
Bad
Excellent

Answer passage (source: UK):
page_title: Guidance Coronavirus outbreak FAQs: what you can and can't do
section_headers: Borders / international visitors
What is self-isolation and which countries will it apply to?
section_content: Please note - these measures are NOT yet in force. We will set out further
detail, including from when these will be in force, in due course.
We will be asking people travelling to the UK to make some sacrifices to stop
coronavirus cases from being imported. In the same way as people in the UK
have made large sacrifices to control the spread of coronavirus.
So what we will be asking people to do on entering the UK is supply their
contact details and details of their accommodation, and to self-isolate in
their accommodation for 14 days, other than those on a short list of
exemptions.
We will set out further details shortly.

Reviewer feedback on this answer:
Has some, but not comprehensive, information on what information people traveling to the UK need to provide border control.
This is a direct answer to the question. It contains information on what travelers need to provide when entering the UK.

Reviewer ratings:
Acceptable
Excellent