TLDR: How did the COP conclude that Workers’ Party leaders lied?

In the Committee of Privileges’ (COP) final report on Feb 10, it found that Workers’ Party (WP) leaders had lied — while under oath — on their involvement in Raeesah Khan’s untruths told in Parliament on Aug 3 and Oct 4. Party chief Pritam Singh and vice-chair Faisal Manap were referred to the Public Prosecutor for future investigations. How did the COP conclude that the three WP leaders had lied?