a few

• Det

  A small number of (a set of countable items); more than one but not very many; especially, more than two but not very many (explained in usage note at several).

• Pron

residents

plural of resident

live on

1. To endure.
2. To survive solely by consuming a certain thing.
3. To rely on financially.
4. To be defined on.

on board

• Adj

  1. On or in a means of transportation.
  2. Joining in or participating.
  3. Agreeing or supporting.
  4. Into itself or oneself.

• Intj

full-time

• Adj

  Involving a full amount of time spent on some activity, especially a job.

• Adv

while

• Noun

  1. An uncertain duration of time, a period of time.
  2. An uncertain duration of time, a period of time.
  3. An uncertain duration of time, a period of time.

• Conj
• Prep
• Verb

most

• Det

  1. superlative degree of much.
  2. superlative degree of many: the comparatively largest number of (construed with the definite article)
  3. superlative degree of many: the majority of; more than half of (construed without the definite article)

• Adv
• Adj
• Pron
• Noun
• Adv

periodically

1. In a manner that is regular or periodic.
2. intermittently or recurrently