Premise:
"No not on the bed."
Hypothesis: On the floor.

it is not possible to tell

Premise:
"He examined it carefully, and then, nimbly whipping out a pair of small forceps from his case, he drew out some minute particle which he carefully sealed up in a tiny envelope. "
Hypothesis: He didn't have any forceps.

no

Premise:
"Once the designbuild contract has been awarded, changes to owner requirements will generally incur heavy penalties to the project cost and schedule."
Hypothesis: It is expensive to change particulars after a work order has been issued.
yes