Don’t be afraid to step into the unknown because it is there where adventure can be found. @natgallerysg mark_justiniani @ National Gallery Singapore https://t.co/x5VwOm6E5g
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/x5VwOm6E5g', 'expanded_url': 'https://www.instagram.com/p/B83Is3Ep_hV/?igshid=1u808ckpyrnva', 'display_url': 'instagram.com/p/B83Is3Ep_hV/…', 'indices': [150, 173]}]
CITY HALL
['’', 'afraid', 'step', 'unknown', 'adventure', 'found', '@natgallerysg', 'mark_justiniani', 'national', 'gallery', 'singapore', 'https://t.co/x5vwom6e5g']
['found', 'found', 'adventure', 'found', 'unknown', 'adventure', 'afraid', 'unknown', 'afraid', 'unknown']
dont afraid step into unknown because there where adventure found @natgallerysg national gallery
afraid step unknown adventure found mark justiniani national gallery singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback for a public flat house. The post mentions "afraid" and "adventure" which do not seem to be related to maintenance or public housing. Additionally, the mention of "justiniani national gallery singapore" suggests that the post is not related to a specific block number or street. Therefore, the answer is that the post does not relate to a maintenance report feedback for public flat house.