Context:
A suicide attack is an attack in which the attacker or attackers intend to kill others and intend to die in the process (see suicide). In a suicide attack in the strict sense the attacker dies by the attack itself, for example in an explosion or crash caused by the attacker.
Hypothesis: Suicide attacks are a result of mental illness.
It's impossible to say
Context:
How to replace an empty ink cartridge<br>Write down the printer brand and model number. You will need to know both in order to find the correct replacement ink cartridges. If you can't find the model number, check the documentation that came with your printer.
Hypothesis: You can't buy a new ink cartridge without know the model number and name of printer.
Yes
Context:
The Secret<br>Abby knew her husband was hiding something. She confronted him about the secret he was keeping. He refused to tell her. The next day, she found a gift on her pillow when she woke up. He had surprised her with a diamond ring!
Hypothesis: Her husband proposed marriage

It's impossible to say