Premise:
"Lawrence remained behind, but after a few moments Cynthia called to him over her shoulder to come and join us. "
Hypothesis: Lawrence wasn't confident enough.

it is not possible to tell

Premise:
"Exactly at the same time, black limousines from the Special Security Agency arrived in front of his house."
Hypothesis: The Special Security Agency drove pink trucks.

no

Premise:
"'It's nice to see you all.'"
Hypothesis: I am happy to be here to see you.
it is not possible to tell