When will implicit rule be applied for a makefile?

Question

It says:

In general,make searches for an implicit rule for each target[1], and for each double-colon rule[2], that has no commands[3].

This can have two different understanding:

1 or (2 and 3)

(1 or 2) and 3

Which does it mean?

Answer 1

The "has no commands" part always applies, i.e.,

(1 or 2) and 3