These elements were determined in "Knight v Knight" to be intention, subject matter and objects. The certainty of intention allows the court to ascertain a settlor's true reason for creating the trust. The certainties of subject matter and objects allow the court to administer trust when the trustees fail to do so. The court determines whether there is sufficient certainty by construing the words used in the trust instrument. These words are construed objectively in their "reasonable meaning", within the context of the entire instrument. Despite intention being integral to express trusts, the court will try not to let trusts fail for the lack of certainty. A trust may have multiple trustees, and these trustees are the legal owners of the trust's property, but have a fiduciary duty to beneficiaries and various duties, such as a duty of care and a duty to inform. If trustees do not adhere to these duties, they may be removed through a legal action. The trustee may be either a person or a legal entity such as a company, but typically the trust itself is not an entity and any lawsuit must be against the trustees. A trustee has many rights and responsibilities which vary based on the jurisdiction and trust instrument. If a trust lacks a trustee, a court may appoint a trustee. The trustees administer the affairs attendant to the trust. The trust's affairs may include prudently investing the assets of the trust, accounting for and reporting periodically to the beneficiaries, filing required tax returns and other duties. In some cases dependent upon the trust instrument, the trustees must make discretionary decisions as to whether beneficiaries should receive trust assets for their benefit. A trustee may be held personally liable for problems, although fiduciary liability insurance similar to directors and officers liability insurance can be purchased. For example, a trustee could be liable if assets are not properly invested. In addition, a trustee may be liable to its beneficiaries even where the trust has made a profit but consent has not been given. However, in the United States, similar to directors and officers, an exculpatory clause may minimize liability; although this was previously held to be against public policy, this position has changed. In the United States, the Uniform Trust Code provides for reasonable compensation and reimbursement for trustees subject to review by courts, although trustees may be unpaid. Commercial banks acting as trustees typically charge about 1% of assets under management. The beneficiaries are beneficial (or 'equitable') owners of the trust property. Either immediately or eventually, the beneficiaries will receive income from the trust property, or they will receive the property itself. The extent of a beneficiary's interest depends on the wording of the trust document.