user: Is it acceptable to sign a cappella (without musical accompaniment) at a community musical theater audition?

assistant: No, this is usually not considered acceptable. Auditioners for local, community musical theater are usually expected to provide sheet music -- clearly marked with their specific cut of the material -- for the audition accompanist. This may be a physical, printed copy of the music, or an electronic version provided on a tablet computer such as an iPad. In some cases, the company holding the auditions may also allow you to play recorded accompaniment at the audition. However, this should also be avoided unless the audition instructions specifically state that this is acceptable.

user: From the passage provided, extract the name of the person that made some fountains in the garden, and how many. Your answer shall be of the format "{name} built {number of fountains} fountains."

assistant: Jakub Mitthofer built four fountains.

user: How can you take good star photos?

assistant: Taking good star photos requires 3 critical elements: good observation conditions, good equipment and plenty of time. Picking a dark site without a lot of light pollution that's away from cities and other strong sources of light is a must. The weather also has to be clear, without clouds, and preferably on a night without full moon which is another source of light pollution. On the equipment side, if you're planning to use a cellphone, make sure that it has a night mode and you have a way to keep it immobile for the duration of the photo, which could take 4 or more minutes. You will get better results with a digital camera as those have larger lenses which can capture more light. Also remember that the longer the photo, the more the earth will turn, causing your starts to appear as trails in the photo - which may or may not be desired. For professional looking photos you'll need a telescope, and remember that no matter what you do, your photos won't look anything like those coming from Hubble and other large telescopes. Lastly, plan on spending plenty of time - the longer the exposure the better you can see the stars, and you might want to take several photos - try different parts of the sky, see what happens when you include the ground or not, and remember to let your eyes adjust to the dark and look around yourself, while you're taking the photos!