context: Two young girls have fun on a trampoline, one of which appears to be falling down onto her back while the other poses with a smile behind her.
hypothesis: We doubt that two young girls have fun on a trampoline, one of which appears to be falling down onto her back while the other poses with a smile behind her.
valid_hypothesis: It is certain that two young girls have fun on a trampoline, one of which appears to be falling down onto her back while the other poses with a smile behind her.
invalid_hypothesis: We doubt that two young girls have fun on a trampoline, one of which appears to be falling down onto her back while the other poses with a smile behind her.
hypothesis_assertion: Two young girls have fun on a trampoline, one of which appears to be falling down onto her back while the other poses with a smile behind her.