Subsection (a)(16) prohibits involvement in three types of activities with respect to welfare  lobbying, rulemaking, and litigation.
Lobbying, rulemaking and litigation are three of the many activities related to welfare.
mnli hypothesis: Lobbying, rulemaking and litigation are three of the many activities related to welfare. premise: Subsection (a)(16) prohibits involvement in three types of activities with respect to welfare  lobbying, rulemaking, and litigation.