Unable to add Food or Hobby values that contains a prefix

[whitesnowx]

Steps to reproduce

1. Adding a person with food preferences with "/" in the name

Code

``` add id/ 543221111 n/ John Doe p/ John f/ Curry chicken h/c c/ Stable h/ Singing karaoke t/amnesia ```

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Results

Expected

• Food: Curry chicken h/c
• Hobby: Singing karaoke

Actual

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Rationale:

• A User might want to include denotation such as Hot and Cold in h/c and is unable to do so since h/ is conflicted with the hobby prefix

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Suggestions

• Limit such that "/" are not allowed
• Provide a workaround such like " are used to denote such cases
• Prompt as error message when ambiliguilty for the application to parse when PREFIX exists behind the attributes which allows specials characters such as "/"

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[nus-pe-bot]

Your response not required for this bug as the team has accepted the bug as it is.