if all of the interests in an eligible entity are owned by participants in a joint venture and all or substantially all of the qualifying revenue of the eligible entity for a qualifying period is in respect of the joint venture, then the eligible entity may use the qualifying revenues of the joint venture (determined as if the joint venture were an eligible entity) as its qualifying revenues for the qualifying period for the purposes of this section;
if all of the interests in an eligible entity are owned by participants in a joint venture and all or substantially all of the qualifying revenue of the eligible entity for a qualifying period is in respect of the joint venture, then the eligible entity may use the qualifying revenues of the joint venture (determined as if the joint venture were an eligible entity) instead of its qualifying revenues for the purposes of paragraph (c) of the definition qualifying entity in subsection (1);