user: What is the potential hydrogen (ph) of water?

assistant: The potential hydrogen of water measure how acidic or alkaline water is?  Water with a potential hydrogen of 7.0 is considered neutral water and this kind of water is typically distilled water.  Water that has a ph of less than 7.0 considered acidic water and even some bottled water has a PH less than 7.0.  Water which a PH higher than 7.0 is considered alkaline.  You can also adjust the PH of water with simple salts.  For example baking soda can be used to raise the PH of water which is acidic and lemon juice can be used to lower the PH of water that is alkaline.

user: Give me a list of the key elements of telecommunications developed over time

assistant: Beacons, telegraph, telephone, radio, television, thermionic valves, computer networks and the Internet

user: Which of these words are nouns and which are adjectives. Fridge, wipe, bed, chair, jump, yell, sleep, fruit and talk.

assistant: Fridge, bed, chair and fruit are words that are nouns. Wipe, jump, yell, sleep and talk are words that are adjectives.