
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given that $\{a_n\}$ is an arithmetic sequence with common difference $d$, and $S_n$ is the sum of the first $n$ terms, if only $S_4$ is the minimum term among $\{S_n\}$, then the correct conclusion(s) can be drawn is/are ______.

$(1) d > 0$    $(2) a_4 < 0$   $(3) a_5 > 0$   $(4) S_7 < 0$    $(5) S_8 > 0$.

Present the answer in LaTex format: \boxed{Your answer}
user