The strength of a lock is graded from strongest to weakest on a scale of 1-3. Grade 1 locks are typically used on commercial properties as they are the most secure and durable locks available. A lock graded as 2 or 3 on the other hand is suitable residential use. It is, however, generally advised that busy homes use a more robust grade 2 lock which is also suitable for light commercial use. In addition to supplying locks, a commercial locksmith will also offer an installation and repair service for commercial security systems. This can involve the supply and maintenance of safes and cabinet locks, as well as more elaborate master key systems and panic bars.
The passage provides information about the grading of lock strength and the services offered by a commercial locksmith, but it does not contain any mathematical questions or answers.
no_question
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
The strength of a lock is graded from strongest to weakest on a scale of 1-3. Grade 1 locks are typically used on commercial properties as they are the most secure and durable locks available. A lock graded as 2 or 3 on the other hand is suitable residential use. It is, however, generally advised that busy homes use a more robust grade 2 lock which is also suitable for light commercial use. In addition to supplying locks, a commercial locksmith will also offer an installation and repair service for commercial security systems. This can involve the supply and maintenance of safes and cabinet locks, as well as more elaborate master key systems and panic bars.
user
The passage provides information about the grading of lock strength and the services offered by a commercial locksmith, but it does not contain any mathematical questions or answers.

TYPE: NO_QUESTION